Finalised data gathering
[battle-of-the-bands.git] / beatles-vs-stones-gather-data.ipynb
index 05b77a0e81f4ae0b21d7041de35237790c0341c9..7483201d489bca65b2429b59576510680ebec3f6 100644 (file)
     "* [Tag track with artist](#tagtrackwithartist)\n",
     "* [Get full track data](#fulltrackdata)\n",
     "* [Lyrics search](#lyricssearch)\n",
-    "\n",
-    "^^ Done\n",
-    "\n",
-    "vv Not done\n",
-    "\n",
     "* [Matching datasets](#matchingdatasets)\n",
     "* [Copy the lyrics over](#copylyrics)\n",
     "* [Sentiment analysis](#sentimentanalysis)\n",
@@ -54,9 +49,8 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 3,
    "metadata": {
-    "collapsed": true,
     "run_control": {
      "read_only": false
     }
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {
-    "collapsed": true
-   },
+   "execution_count": 4,
+   "metadata": {},
    "outputs": [],
    "source": [
     "# Open a connection to the Mongo server\n",
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [],
    "source": [
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [],
    "source": [
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
        "['app_name', 'client_id', 'client_secret', 'redirect_uri', 'token']"
       ]
      },
-     "execution_count": 5,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
     "#     config.write(configfile)"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "stones_id = '22bE4uQ6baNwSHPVcDxLCe'\n",
+    "beatles_id = '3WrFJ7ztbogyGnTHbHJFl2'"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
   },
   {
    "cell_type": "code",
-   "execution_count": 52,
-   "metadata": {
-    "collapsed": true
-   },
+   "execution_count": 8,
+   "metadata": {},
    "outputs": [],
    "source": [
     "def canonical_name(text):\n",
   },
   {
    "cell_type": "code",
-   "execution_count": 53,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
        "'a hard days night'"
       ]
      },
-     "execution_count": 53,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
   },
   {
    "cell_type": "code",
-   "execution_count": 54,
-   "metadata": {
-    "collapsed": true
-   },
+   "execution_count": 12,
+   "metadata": {},
    "outputs": [],
    "source": [
     "for t in tracks.find():\n",
     "    genius_tracks.update_one({'_id': t['_id']}, {'$set': {'ctitle': canonical_name(t['title'])}})"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Now to see what the differences are. Find the tracks that are in both collections, and tracks that are in only one."
-   ]
-  },
   {
    "cell_type": "code",
-   "execution_count": 55,
+   "execution_count": 81,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "(489, 559, 57)"
+       "[('fight', ['Fight', 'Fight - Remastered 2009']),\n",
+       " ('eight days a week',\n",
+       "  ['Eight Days A Week - Remastered 2015',\n",
+       "   'Eight Days A Week - Remastered 2009']),\n",
+       " ('yesterday', ['Yesterday - Remastered 2015', 'Yesterday - Remastered 2009']),\n",
+       " ('had it with you', ['Had It With You', 'Had It With You - Remastered 2009']),\n",
+       " ('little red rooster',\n",
+       "  ['Little Red Rooster - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Little Red Rooster - Live In Ireland / 1965']),\n",
+       " ('sympathy for the devil',\n",
+       "  ['Sympathy For The Devil - Live At Beacon Theatre, New York / 2006',\n",
+       "   'Sympathy For The Devil - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Sympathy For The Devil - Live']),\n",
+       " ('you got the silver',\n",
+       "  ['You Got The Silver - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'You Got The Silver - Live']),\n",
+       " ('worried about you',\n",
+       "  ['Worried About You - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Worried About You - 2009 Re-Mastered Digital Version']),\n",
+       " ('you cant do that',\n",
+       "  [\"You Can't Do That - Live / Bonus Track\",\n",
+       "   \"You Can't Do That - Remastered 2009\"]),\n",
+       " ('when the whip comes down',\n",
+       "  ['When The Whip Comes Down - Remastered',\n",
+       "   'When The Whip Comes Down - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'When The Whip Comes Down - Remastered']),\n",
+       " ('babys in black',\n",
+       "  [\"Baby's In Black - Live / Bonus Track\",\n",
+       "   \"Baby's In Black - Remastered 2009\"]),\n",
+       " ('slipping away',\n",
+       "  ['Slipping Away - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Slipping Away - 2009 Re-Mastered Digital Version']),\n",
+       " ('i want to hold your hand',\n",
+       "  ['I Want To Hold Your Hand - Live / Bonus Track',\n",
+       "   'I Want To Hold Your Hand - Remastered 2015']),\n",
+       " ('yellow submarine',\n",
+       "  ['Yellow Submarine - Remastered 2015',\n",
+       "   'Yellow Submarine - Remastered 2009',\n",
+       "   'Yellow Submarine - Remastered 2009']),\n",
+       " ('one hit to the body',\n",
+       "  ['One Hit (To The Body)', 'One Hit (To The Body) - Remastered 2009']),\n",
+       " ('shine a light',\n",
+       "  ['Shine A Light - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Shine A Light - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Shine a Light - Live']),\n",
+       " ('its only rock n roll but i like it',\n",
+       "  [\"It's Only Rock 'n' Roll (But I Like It) - Live Licks Tour - 2009 Re-Mastered Digital Version\",\n",
+       "   \"It's Only Rock 'N Roll (But I Like It) - Live\"]),\n",
+       " ('out of control',\n",
+       "  ['Out Of Control - 2009 Digital Remaster', 'Out Of Control - Live']),\n",
+       " ('respectable', ['Respectable - Remastered', 'Respectable - Remastered']),\n",
+       " ('winning ugly', ['Winning Ugly', 'Winning Ugly - Remastered 2009']),\n",
+       " ('harlem shuffle', ['Harlem Shuffle', 'Harlem Shuffle - Remastered 2009']),\n",
+       " ('like a rolling stone',\n",
+       "  ['Like a Rolling Stone - Live',\n",
+       "   'Like A Rolling Stone - Live - 2009 Re-Mastered Digital Version']),\n",
+       " ('too rude', ['Too Rude', 'Too Rude - Remastered 2009']),\n",
+       " ('hello goodbye',\n",
+       "  ['Hello, Goodbye - Remastered 2015', 'Hello, Goodbye - Remastered 2009']),\n",
+       " ('tumbling dice',\n",
+       "  ['Tumbling Dice - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Tumbling Dice - Live']),\n",
+       " ('everybody needs somebody to love',\n",
+       "  ['Everybody Needs Somebody To Love - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Everybody Needs Somebody To Love - Live In Ireland / 1965']),\n",
+       " ('let it be', ['Let It Be - Remastered 2015', 'Let It Be - Remastered 2009']),\n",
+       " ('i will', ['I Will - Remastered 2009', 'I Will']),\n",
+       " ('paint it black',\n",
+       "  ['Paint It Black - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Paint It Black - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Paint It Black - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Paint It Black - Live']),\n",
+       " ('start me up',\n",
+       "  ['Start Me Up - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Start Me Up - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Start Me Up - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Start Me Up - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Start Me Up - 2009 Re-Mastered Digital Version',\n",
+       "   'Start Me Up - Live']),\n",
+       " ('dead flowers',\n",
+       "  ['Dead Flowers - Live',\n",
+       "   'Dead Flowers - Live - 2009 Re-Mastered Digital Version']),\n",
+       " ('love me do',\n",
+       "  ['Love Me Do - Mono / Remastered 2015', 'Love Me Do - Remastered 2009']),\n",
+       " ('key to the highway',\n",
+       "  ['Key To The Highway - Piano Instrumental',\n",
+       "   'Key To The Highway - Piano Instrumental/Remastered 2009']),\n",
+       " ('you dont have to mean it',\n",
+       "  [\"You Don't Have To Mean It - Live Licks Tour - 2009 Re-Mastered Digital Version\",\n",
+       "   \"You Don't Have To Mean It - 2009 Digital Remaster\"]),\n",
+       " ('shattered',\n",
+       "  ['Shattered - Remastered',\n",
+       "   'Shattered - Remastered',\n",
+       "   'Shattered - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Shattered - Live - 2009 Re-Mastered Digital Version']),\n",
+       " ('ticket to ride',\n",
+       "  ['Ticket To Ride - Live / Remastered',\n",
+       "   'Ticket To Ride - Remastered 2015',\n",
+       "   'Ticket To Ride - Remastered 2009']),\n",
+       " ('hold back', ['Hold Back', 'Hold Back - Remastered 2009']),\n",
+       " ('all my loving',\n",
+       "  ['All My Loving - Live / Remastered', 'All My Loving - Remastered 2009']),\n",
+       " ('angie',\n",
+       "  ['Angie - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Angie - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Angie - Live']),\n",
+       " ('faraway eyes',\n",
+       "  ['Faraway Eyes - Live',\n",
+       "   'Faraway Eyes - Live At The Beacon Theatre, New York / 2006']),\n",
+       " ('roll over beethoven',\n",
+       "  ['Roll Over Beethoven - Live / Remastered',\n",
+       "   'Roll Over Beethoven - Remastered 2009']),\n",
+       " ('something', ['Something - Remastered 2015', 'Something - Remastered 2009']),\n",
+       " ('miss you',\n",
+       "  ['Miss You - Remastered',\n",
+       "   'Miss You - Live',\n",
+       "   'Miss You - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Miss You - Remastered',\n",
+       "   'Miss You - Live']),\n",
+       " ('get back', ['Get Back - Remastered 2015', 'Get Back - Remastered 2009']),\n",
+       " ('midnight rambler', ['Midnight Rambler - Live', 'Midnight Rambler - Live']),\n",
+       " ('time is on my side',\n",
+       "  ['Time Is On My Side - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Time Is On My Side - Live In Ireland / 1965']),\n",
+       " ('you cant always get what you want',\n",
+       "  [\"You Can't Always Get What You Want - Live Licks Tour - 2009 Re-Mastered Digital Version\",\n",
+       "   \"You Can't Always Get What You Want - Live - 2009 Re-Mastered Digital Version\",\n",
+       "   'You Can’t Always Get What You Want - Live']),\n",
+       " ('just my imagination running away with me',\n",
+       "  ['Just My Imagination (Running Away With Me) - Remastered',\n",
+       "   'Just My Imagination (Running Away With Me) - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Just My Imagination (Running Away With Me) - Remastered']),\n",
+       " ('all down the line',\n",
+       "  ['All Down The Line - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'All Down The Line - Live']),\n",
+       " ('sgt peppers lonely hearts club band',\n",
+       "  [\"Sgt. Pepper's Lonely Hearts Club Band - Remastered 2009\",\n",
+       "   \"Sgt. Pepper's Lonely Hearts Club Band - Reprise / Remastered 2009\"]),\n",
+       " ('street fighting man',\n",
+       "  ['Street Fighting Man - Live',\n",
+       "   'Street Fighting Man - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Street Fighting Man - Live - 2009 Re-Mastered Digital Version']),\n",
+       " ('little ta',\n",
+       "  ['Little T&A - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Little T&A - 2009 Re-Mastered Digital Version']),\n",
+       " ('help',\n",
+       "  ['Help! - Live / Remastered',\n",
+       "   'Help! - Remastered 2015',\n",
+       "   'Help! - Remastered 2009']),\n",
+       " ('boys', ['Boys - Live / Remastered', 'Boys - Remastered 2009']),\n",
+       " ('beast of burden',\n",
+       "  ['Beast Of Burden - Remastered',\n",
+       "   'Beast Of Burden - Remastered',\n",
+       "   'Beast Of Burden - Live Licks Tour - 2009 Re-Mastered Digital Version']),\n",
+       " ('brown sugar',\n",
+       "  ['Brown Sugar - Live',\n",
+       "   'Brown Sugar - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Brown Sugar - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Brown Sugar - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Brown Sugar - Live']),\n",
+       " ('rock and a hard place',\n",
+       "  ['Rock And A Hard Place - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Rock And A Hard Place - 2009 Re-Mastered Digital Version']),\n",
+       " ('gimme shelter',\n",
+       "  ['Gimme Shelter - Live',\n",
+       "   'Gimme Shelter - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Gimme Shelter - Live']),\n",
+       " ('before they make me run',\n",
+       "  ['Before They Make Me Run - Remastered',\n",
+       "   'Before They Make Me Run - Remastered',\n",
+       "   'Before They Make Me Run - Live']),\n",
+       " ('twist and shout',\n",
+       "  ['Twist And Shout - Live / Remastered',\n",
+       "   'Twist And Shout - Remastered 2009']),\n",
+       " ('im free',\n",
+       "  [\"I'm Free - Live At The Beacon Theatre, New York / 2006\",\n",
+       "   \"I'm Free - Live - 2009 Re-Mastered Digital Version\"]),\n",
+       " ('things we said today',\n",
+       "  ['Things We Said Today - Live / Remastered',\n",
+       "   'Things We Said Today - Remastered 2009']),\n",
+       " ('honky tonk women',\n",
+       "  ['Honky Tonk Women - Live',\n",
+       "   'Honky Tonk Women - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Honky Tonk Women - Live']),\n",
+       " ('neighbours',\n",
+       "  ['Neighbours - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "   'Neighbours - 2009 Re-Mastered Digital Version']),\n",
+       " ('eleanor rigby',\n",
+       "  ['Eleanor Rigby - Remastered 2015', 'Eleanor Rigby - Remastered 2009']),\n",
+       " ('some girls',\n",
+       "  ['Some Girls - Remastered',\n",
+       "   'Some Girls - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'Some Girls - Remastered']),\n",
+       " ('sad sad sad',\n",
+       "  ['Sad Sad Sad - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Sad Sad Sad - 2009 Re-Mastered Digital Version']),\n",
+       " ('everybodys trying to be my baby',\n",
+       "  ['Everybody’s Trying To Be My Baby - Live / Bonus Track',\n",
+       "   \"Everybody's Trying To Be My Baby - Remastered 2009\"]),\n",
+       " ('sleep tonight', ['Sleep Tonight', 'Sleep Tonight - Remastered 2009']),\n",
+       " ('cant buy me love',\n",
+       "  [\"Can't Buy Me Love - Live / Remastered\",\n",
+       "   \"Can't Buy Me Love - Remastered 2015\",\n",
+       "   \"Can't Buy Me Love - Remastered 2009\"]),\n",
+       " ('dirty work', ['Dirty Work', 'Dirty Work - Remastered 2009']),\n",
+       " ('the long and winding road',\n",
+       "  ['The Long And Winding Road - Remastered 2015',\n",
+       "   'The Long And Winding Road - Remastered 2009']),\n",
+       " ('far away eyes',\n",
+       "  ['Far Away Eyes - Remastered', 'Far Away Eyes - Remastered']),\n",
+       " ('i go wild',\n",
+       "  ['I Go Wild - Live', 'I Go Wild - 2009 Re-Mastered Digital Version']),\n",
+       " ('continental drift',\n",
+       "  ['Continental Drift - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Continental Drift - 2009 Re-Mastered Digital Version']),\n",
+       " ('come together',\n",
+       "  ['Come Together - Remastered 2015', 'Come Together - Remastered 2009']),\n",
+       " ('penny lane',\n",
+       "  ['Penny Lane - Remastered 2015', 'Penny Lane - Remastered 2009']),\n",
+       " ('cant be seen',\n",
+       "  [\"Can't Be Seen - Live - 2009 Re-Mastered Digital Version\",\n",
+       "   \"Can't Be Seen - 2009 Re-Mastered Digital Version\"]),\n",
+       " ('jumpin jack flash',\n",
+       "  [\"Jumpin' Jack Flash - Live\",\n",
+       "   \"Jumpin' Jack Flash - Live - 2009 Re-Mastered Digital Version\",\n",
+       "   \"Jumpin' Jack Flash - Live\"]),\n",
+       " ('i cant get no satisfaction',\n",
+       "  [\"(I Can't Get No) Satisfaction - Live At The Beacon Theatre, New York / 2006\",\n",
+       "   \"(I Can't Get No) Satisfaction - Live Licks Tour - 2009 Re-Mastered Digital Version\",\n",
+       "   \"(I Can't Get No) Satisfaction - Live - 2009 Re-Mastered Digital Version\",\n",
+       "   \"(I Can't Get No) Satisfaction - Live - 2009 Re-Mastered Digital Version\",\n",
+       "   \"(I Can't Get No) Satisfaction - Live\"]),\n",
+       " ('a hard days night',\n",
+       "  [\"A Hard Day's Night - Live / Remastered\",\n",
+       "   \"A Hard Day's Night - Remastered 2015\",\n",
+       "   \"A Hard Day's Night - Remastered 2009\"]),\n",
+       " ('let me go',\n",
+       "  ['Let Me Go - Live - 2009 Re-Mastered Digital Version',\n",
+       "   'Let Me Go - 2009 Re-Mastered Digital Version']),\n",
+       " ('not fade away',\n",
+       "  ['Not Fade Away - Live',\n",
+       "   'Not Fade Away - Live - 2009 Re-Mastered Digital Version']),\n",
+       " ('dizzy miss lizzy',\n",
+       "  ['Dizzy Miss Lizzy - Live / Remastered',\n",
+       "   'Dizzy Miss Lizzy - Remastered 2009']),\n",
+       " ('she loves you',\n",
+       "  ['She Loves You - Live / Remastered',\n",
+       "   'She Loves You - Mono / Remastered 2015']),\n",
+       " ('back to zero', ['Back To Zero', 'Back To Zero - Remastered 2009']),\n",
+       " ('lies', ['Lies - Remastered', 'Lies - Remastered']),\n",
+       " ('she was hot',\n",
+       "  ['She Was Hot - Live At The Beacon Theatre, New York / 2006',\n",
+       "   'She Was Hot - 2009 Re-Mastered Digital Version']),\n",
+       " ('all you need is love',\n",
+       "  ['All You Need Is Love - Remastered 2015',\n",
+       "   'All You Need Is Love - Remastered 2009',\n",
+       "   'All You Need Is Love - Remastered 2009'])]"
       ]
      },
-     "execution_count": 55,
+     "execution_count": 81,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "in_both = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if tracks.find({'ctitle': g['ctitle']}).count())\n",
-    "genius_only = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if not tracks.find({'ctitle': g['ctitle']}).count())\n",
-    "spotify_only = set(s['ctitle'] for s in tracks.find({}, ['ctitle']) if not genius_tracks.find({'ctitle': s['ctitle']}).count())\n",
-    "len(in_both), len(genius_only), len(spotify_only)"
+    "ctitles = set([t['ctitle'] for t in tracks.find()])\n",
+    "\n",
+    "[(ct, [t['name'] for t in tracks.find({'ctitle': ct})]) \n",
+    " for ct in ctitles\n",
+    " if tracks.find({'ctitle': ct}).count() > 1\n",
+    "]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 56,
+   "execution_count": 84,
    "metadata": {
     "scrolled": true
    },
     {
      "data": {
       "text/plain": [
-       "{'2 2 5 live at earls court',\n",
-       " 'a punch up at a wedding',\n",
-       " 'band introductions',\n",
-       " 'bloom blawan rmx',\n",
-       " 'bloom harmonic 313 rmx',\n",
-       " 'bloom jamie xx rework',\n",
-       " 'bloom mark pritchard rmx',\n",
-       " 'bloom objekt rmx',\n",
-       " 'bullet proof i wish i was',\n",
-       " 'charlies intro to little red rooster',\n",
-       " 'codex illum sphere',\n",
-       " 'dollars cents',\n",
-       " 'dollars cents live',\n",
-       " 'everybody needs somebody to love finale',\n",
-       " 'everything in its right place live in france',\n",
-       " 'faraway eyes',\n",
-       " 'feral lone rmx',\n",
-       " 'fog again live',\n",
-       " 'give up the ghost brokenchord rmx',\n",
-       " 'give up the ghost thriller houseghost remix',\n",
-       " 'good evening mrs magpie modeselektor rmx',\n",
-       " 'i might be wrong live',\n",
-       " 'i will los angeles version',\n",
-       " 'idioteque live in oxford',\n",
-       " 'intro take the a train',\n",
-       " 'jumping jack flash',\n",
-       " 'just my imagination',\n",
-       " 'kansas city heyheyheyhey',\n",
-       " 'key to the highway',\n",
-       " 'like spinning plates live',\n",
-       " 'little by little caribou rmx',\n",
-       " 'little by little shed',\n",
-       " 'little ta',\n",
-       " 'lotus flower jacques greene rmx',\n",
-       " 'lotus flower sbtrkt rmx',\n",
-       " 'march of the meanies',\n",
-       " 'martin scorsese intro',\n",
-       " 'morning bell live in oxford',\n",
-       " 'morning mr magpie nathan fake rmx',\n",
-       " 'morning mr magpie pearson sound scavenger rmx',\n",
-       " 'outro',\n",
-       " 'packt like sardines in a crushed tin box',\n",
-       " 'pepperland',\n",
-       " 'pepperland laid waste',\n",
-       " 'remyxomatosis cristian vogel rmx',\n",
-       " 'revolution 1',\n",
-       " 'sea of holes',\n",
-       " 'sea of monsters',\n",
-       " 'sea of time',\n",
-       " 'separator anstam rmx',\n",
-       " 'separator four tet rmx',\n",
-       " 'skttrbrain four tet remix',\n",
-       " 'the national anthem live in france',\n",
-       " 'tkol altrice rmx',\n",
-       " 'true love waits live in oslo',\n",
-       " 'untitled',\n",
-       " 'when im sixty four'}"
+       "[('eight days a week',\n",
+       "  [('Eight Days A Week - Remastered 2015', 0.215),\n",
+       "   ('Eight Days A Week - Remastered 2009', 0.119)]),\n",
+       " ('yesterday',\n",
+       "  [('Yesterday - Remastered 2015', 0.0968),\n",
+       "   ('Yesterday - Remastered 2009', 0.0886)]),\n",
+       " ('had it with you',\n",
+       "  [('Had It With You', 0.0655),\n",
+       "   ('Had It With You - Remastered 2009', 0.0744)]),\n",
+       " ('worried about you',\n",
+       "  [('Worried About You - Live Licks Tour - 2009 Re-Mastered Digital Version',\n",
+       "    0.47),\n",
+       "   ('Worried About You - 2009 Re-Mastered Digital Version', 0.0865)]),\n",
+       " ('when the whip comes down',\n",
+       "  [('When The Whip Comes Down - Remastered', 0.242),\n",
+       "   ('When The Whip Comes Down - Remastered', 0.205)]),\n",
+       " ('slipping away',\n",
+       "  [('Slipping Away - Live - 2009 Re-Mastered Digital Version', 0.106),\n",
+       "   ('Slipping Away - 2009 Re-Mastered Digital Version', 0.421)]),\n",
+       " ('yellow submarine',\n",
+       "  [('Yellow Submarine - Remastered 2015', 0.543),\n",
+       "   ('Yellow Submarine - Remastered 2009', 0.528),\n",
+       "   ('Yellow Submarine - Remastered 2009', 0.438)]),\n",
+       " ('one hit to the body',\n",
+       "  [('One Hit (To The Body)', 0.62),\n",
+       "   ('One Hit (To The Body) - Remastered 2009', 0.688)]),\n",
+       " ('respectable',\n",
+       "  [('Respectable - Remastered', 0.0677),\n",
+       "   ('Respectable - Remastered', 0.0677)]),\n",
+       " ('winning ugly',\n",
+       "  [('Winning Ugly', 0.693), ('Winning Ugly - Remastered 2009', 0.689)]),\n",
+       " ('harlem shuffle',\n",
+       "  [('Harlem Shuffle', 0.224), ('Harlem Shuffle - Remastered 2009', 0.319)]),\n",
+       " ('too rude', [('Too Rude', 0.0245), ('Too Rude - Remastered 2009', 0.0231)]),\n",
+       " ('hello goodbye',\n",
+       "  [('Hello, Goodbye - Remastered 2015', 0.525),\n",
+       "   ('Hello, Goodbye - Remastered 2009', 0.414)]),\n",
+       " ('let it be',\n",
+       "  [('Let It Be - Remastered 2015', 0.112),\n",
+       "   ('Let It Be - Remastered 2009', 0.111)]),\n",
+       " ('i will', [('I Will - Remastered 2009', 0.0822), ('I Will', 0.113)]),\n",
+       " ('love me do',\n",
+       "  [('Love Me Do - Mono / Remastered 2015', 0.154),\n",
+       "   ('Love Me Do - Remastered 2009', 0.227)]),\n",
+       " ('key to the highway',\n",
+       "  [('Key To The Highway - Piano Instrumental', 0.132),\n",
+       "   ('Key To The Highway - Piano Instrumental/Remastered 2009', 0.138)]),\n",
+       " ('shattered',\n",
+       "  [('Shattered - Remastered', 0.124), ('Shattered - Remastered', 0.122)]),\n",
+       " ('ticket to ride',\n",
+       "  [('Ticket To Ride - Live / Remastered', 0.366),\n",
+       "   ('Ticket To Ride - Remastered 2015', 0.259),\n",
+       "   ('Ticket To Ride - Remastered 2009', 0.233)]),\n",
+       " ('hold back', [('Hold Back', 0.343), ('Hold Back - Remastered 2009', 0.368)]),\n",
+       " ('roll over beethoven',\n",
+       "  [('Roll Over Beethoven - Live / Remastered', 0.634),\n",
+       "   ('Roll Over Beethoven - Remastered 2009', 0.0952)]),\n",
+       " ('something',\n",
+       "  [('Something - Remastered 2015', 0.144),\n",
+       "   ('Something - Remastered 2009', 0.138)]),\n",
+       " ('miss you',\n",
+       "  [('Miss You - Remastered', 0.364),\n",
+       "   ('Miss You - Remastered', 0.236),\n",
+       "   ('Miss You - Live', 0.646)]),\n",
+       " ('get back',\n",
+       "  [('Get Back - Remastered 2015', 0.0959),\n",
+       "   ('Get Back - Remastered 2009', 0.61)]),\n",
+       " ('just my imagination running away with me',\n",
+       "  [('Just My Imagination (Running Away With Me) - Remastered', 0.411),\n",
+       "   ('Just My Imagination (Running Away With Me) - Remastered', 0.322)]),\n",
+       " ('help',\n",
+       "  [('Help! - Remastered 2015', 0.0776), ('Help! - Remastered 2009', 0.0994)]),\n",
+       " ('beast of burden',\n",
+       "  [('Beast Of Burden - Remastered', 0.0389),\n",
+       "   ('Beast Of Burden - Remastered', 0.0382)]),\n",
+       " ('before they make me run',\n",
+       "  [('Before They Make Me Run - Remastered', 0.0499),\n",
+       "   ('Before They Make Me Run - Remastered', 0.0532)]),\n",
+       " ('twist and shout',\n",
+       "  [('Twist And Shout - Live / Remastered', 0.508),\n",
+       "   ('Twist And Shout - Remastered 2009', 0.0414)]),\n",
+       " ('eleanor rigby',\n",
+       "  [('Eleanor Rigby - Remastered 2015', 0.359),\n",
+       "   ('Eleanor Rigby - Remastered 2009', 0.305)]),\n",
+       " ('some girls',\n",
+       "  [('Some Girls - Remastered', 0.409), ('Some Girls - Remastered', 0.51)]),\n",
+       " ('everybodys trying to be my baby',\n",
+       "  [('Everybody’s Trying To Be My Baby - Live / Bonus Track', 0.448),\n",
+       "   (\"Everybody's Trying To Be My Baby - Remastered 2009\", 0.134)]),\n",
+       " ('sleep tonight',\n",
+       "  [('Sleep Tonight', 0.273), ('Sleep Tonight - Remastered 2009', 0.297)]),\n",
+       " ('cant buy me love',\n",
+       "  [(\"Can't Buy Me Love - Remastered 2015\", 0.325),\n",
+       "   (\"Can't Buy Me Love - Remastered 2009\", 0.321)]),\n",
+       " ('dirty work',\n",
+       "  [('Dirty Work', 0.0878), ('Dirty Work - Remastered 2009', 0.0808)]),\n",
+       " ('the long and winding road',\n",
+       "  [('The Long And Winding Road - Remastered 2015', 0.0718),\n",
+       "   ('The Long And Winding Road - Remastered 2009', 0.0559)]),\n",
+       " ('far away eyes',\n",
+       "  [('Far Away Eyes - Remastered', 0.258),\n",
+       "   ('Far Away Eyes - Remastered', 0.232)]),\n",
+       " ('come together',\n",
+       "  [('Come Together - Remastered 2015', 0.1),\n",
+       "   ('Come Together - Remastered 2009', 0.0926)]),\n",
+       " ('penny lane',\n",
+       "  [('Penny Lane - Remastered 2015', 0.16),\n",
+       "   ('Penny Lane - Remastered 2009', 0.136)]),\n",
+       " ('i cant get no satisfaction',\n",
+       "  [(\"(I Can't Get No) Satisfaction - Live - 2009 Re-Mastered Digital Version\",\n",
+       "    0.511),\n",
+       "   (\"(I Can't Get No) Satisfaction - Live\", 0.357)]),\n",
+       " ('a hard days night',\n",
+       "  [(\"A Hard Day's Night - Remastered 2015\", 0.0983),\n",
+       "   (\"A Hard Day's Night - Remastered 2009\", 0.0996)]),\n",
+       " ('dizzy miss lizzy',\n",
+       "  [('Dizzy Miss Lizzy - Live / Remastered', 0.496),\n",
+       "   ('Dizzy Miss Lizzy - Remastered 2009', 0.0962)]),\n",
+       " ('back to zero',\n",
+       "  [('Back To Zero', 0.064), ('Back To Zero - Remastered 2009', 0.0767)]),\n",
+       " ('lies', [('Lies - Remastered', 0.524), ('Lies - Remastered', 0.472)]),\n",
+       " ('all you need is love',\n",
+       "  [('All You Need Is Love - Remastered 2015', 0.263),\n",
+       "   ('All You Need Is Love - Remastered 2009', 0.286),\n",
+       "   ('All You Need Is Love - Remastered 2009', 0.155)])]"
       ]
      },
-     "execution_count": 56,
+     "execution_count": 84,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "spotify_only"
+    "ctitles = set([t['ctitle'] for t in tracks.find()])\n",
+    "\n",
+    "[(ct, [(t['name'], t['liveness']) for t in tracks.find({'ctitle': ct, 'liveness': {'$lt': 0.7}})]) \n",
+    " for ct in ctitles\n",
+    " if tracks.find({'ctitle': ct, 'liveness': {'$lt': 0.7}}).count() > 1\n",
+    "]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 57,
+   "execution_count": 74,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "{'100 years ago',\n",
-       " '1822',\n",
-       " '19th nervous breakdown',\n",
-       " '2000 light years from home',\n",
-       " '2000 man',\n",
-       " '2120 south michigan avenue',\n",
-       " '3',\n",
-       " 'a little rhyme',\n",
-       " 'a moon shaped pool tracklist album cover',\n",
-       " 'a picture of you',\n",
-       " 'a punchup at a wedding',\n",
-       " 'a reminder',\n",
-       " 'a shot of rhythm and blues',\n",
-       " 'across the universe wildlife version',\n",
-       " 'aint she sweet',\n",
-       " 'aint that loving you baby',\n",
-       " 'aint too proud to beg',\n",
-       " 'all sold out',\n",
-       " 'all things must pass',\n",
-       " 'all together on the wireless machine',\n",
-       " 'andrews blues',\n",
-       " 'another beatles christmas record',\n",
-       " 'anyway you look at it',\n",
-       " 'around and around',\n",
-       " 'baby please dont go',\n",
-       " 'baby whats wrong',\n",
-       " 'backstreet girl',\n",
-       " 'bad boy',\n",
-       " 'bad to me',\n",
-       " 'banana co',\n",
-       " 'beatle greetings',\n",
-       " 'beatles movie medley',\n",
-       " 'beautiful delilah',\n",
-       " 'beautiful dreamer',\n",
-       " 'bebopalula',\n",
-       " 'because i know you love me so',\n",
-       " 'being for the benefit of mr kite take 7',\n",
-       " 'being for the benefit of mr kite takes 1 2',\n",
-       " 'being for the benefit of mr kitei want you shes so heavyhelter skelter',\n",
-       " 'besame mucho',\n",
-       " 'big boots',\n",
-       " 'big ideas',\n",
-       " 'bishops robes',\n",
-       " 'bitch',\n",
-       " 'bitches talkin',\n",
-       " 'blackbirdyesterday',\n",
-       " 'blood red wine',\n",
-       " 'blue moon of kentucky',\n",
-       " 'blue suede shoes',\n",
-       " 'blue turns to grey',\n",
-       " 'bright lights big city',\n",
-       " 'bullet proofi wish i was',\n",
-       " 'burning bush',\n",
-       " 'bye bye johnny',\n",
-       " 'can i get a witness',\n",
-       " 'can you hear the music',\n",
-       " 'can you take me back',\n",
-       " 'cant get next to you',\n",
-       " 'carol',\n",
-       " 'casino boogie',\n",
-       " 'ceremony',\n",
-       " 'charlie watts introduction of marianne faithfull',\n",
-       " 'cherry oh baby',\n",
-       " 'child of nature',\n",
-       " 'child of the moon',\n",
-       " 'christmas time is here again',\n",
-       " 'cinnamon girl',\n",
-       " 'citadel',\n",
-       " 'clarabella',\n",
-       " 'climbing up a bloody great hill',\n",
-       " 'cocksucker blues',\n",
-       " 'coke babies',\n",
-       " 'come and get it',\n",
-       " 'come on',\n",
-       " 'come togetherdear prudence',\n",
-       " 'coming down again',\n",
-       " 'commonwealth',\n",
-       " 'complicated',\n",
-       " 'con le mie lacrime',\n",
-       " 'confessin the blues',\n",
-       " 'congratulations',\n",
-       " 'cook cook blues',\n",
-       " 'cool calm and collected',\n",
-       " 'cops and robbers',\n",
-       " 'corinna',\n",
-       " 'country honk',\n",
-       " 'crackin up',\n",
-       " 'crazy mama',\n",
-       " 'crinsk dee night',\n",
-       " 'criss cross man',\n",
-       " 'crushed pearl',\n",
-       " 'cry for a shadow',\n",
-       " 'cry to me',\n",
-       " 'crying waiting hoping',\n",
-       " 'cut a hole',\n",
-       " 'cuttooth',\n",
-       " 'da doo ron ron',\n",
-       " 'dance',\n",
-       " 'dance little sister',\n",
-       " 'dancing in the light',\n",
-       " 'dancing with mr d',\n",
-       " 'dandelion',\n",
-       " 'dear doctor',\n",
-       " 'dear wack',\n",
-       " 'diddley daddy',\n",
-       " 'dollars and cents',\n",
-       " 'doncha bother me',\n",
-       " 'dont ever change',\n",
-       " 'dont let me down',\n",
-       " 'dont lie to me',\n",
-       " 'dont look back',\n",
-       " 'dont stop',\n",
-       " 'doo doo doo doo doo heartbreaker',\n",
-       " 'doom and gloom',\n",
-       " 'down home girl',\n",
-       " 'down in eastern australia',\n",
-       " 'down in the bottom',\n",
-       " 'downtown suzie',\n",
-       " 'dream baby',\n",
-       " 'drift away',\n",
-       " 'drive my carthe wordwhat youre doing',\n",
-       " 'each and every day of the year',\n",
-       " 'eds scary song',\n",
-       " 'egyptian song',\n",
-       " 'eleanor rigbyjulia transition',\n",
-       " 'empty heart',\n",
-       " 'everybody lies through their teeth',\n",
-       " 'everyone needs someone to hate',\n",
-       " 'everything is turning to gold',\n",
-       " 'faithless the wonderboy',\n",
-       " 'falling in love again',\n",
-       " 'family',\n",
-       " 'fancyman blues',\n",
-       " 'fanny mae',\n",
-       " 'fasttrack',\n",
-       " 'final show',\n",
-       " 'fingerprint file',\n",
-       " 'flight 505',\n",
-       " 'fog',\n",
-       " 'follow me around',\n",
-       " 'following the river',\n",
-       " 'fool to cry',\n",
-       " 'fortune teller',\n",
-       " 'four guys',\n",
-       " 'free as a bird',\n",
-       " 'from fluff to you',\n",
-       " 'from us to you',\n",
-       " 'gangsters maul',\n",
-       " 'get back aka no pakistanis',\n",
-       " 'get off of my cloud',\n",
-       " 'give it up',\n",
-       " 'give peace a chance',\n",
-       " 'glad all over',\n",
-       " 'glass onion love remix',\n",
-       " 'gnik nus',\n",
-       " 'goin home',\n",
-       " 'gomper',\n",
-       " 'good time women',\n",
-       " 'good times',\n",
-       " 'good times bad times',\n",
-       " 'goodbye',\n",
-       " 'goodbye girl',\n",
-       " 'gotta get away',\n",
-       " 'grown up wrong',\n",
-       " 'hallelujah i love her so',\n",
-       " 'hand of fate',\n",
-       " 'happy song',\n",
-       " 'harlem shuffle ny mix',\n",
-       " 'harry patch in memory of',\n",
-       " 'have a banana',\n",
-       " 'have a banana speech',\n",
-       " 'have you seen your mother baby standing in the shadow',\n",
-       " 'hear me lord harrison',\n",
-       " 'heart of stone',\n",
-       " 'heavys pizza',\n",
-       " 'hello little girl',\n",
-       " 'here comes the sunthe inner light transition',\n",
-       " 'hey crawdaddy',\n",
-       " 'hey negrita',\n",
-       " 'hide your love',\n",
-       " 'highway child',\n",
-       " 'hiheel sneakers',\n",
-       " 'hitch hike',\n",
-       " 'honest i do',\n",
-       " 'hoochie coochie man',\n",
-       " 'hot stuff',\n",
-       " 'hound dog',\n",
-       " 'how can you be sure',\n",
-       " 'how do you do it',\n",
-       " 'how i made my millions',\n",
-       " 'i aint superstitious',\n",
-       " 'i am waiting',\n",
-       " 'i call your name',\n",
-       " 'i cant be satisfied',\n",
-       " 'i cant help it',\n",
-       " 'i dont know why',\n",
-       " 'i dont know why aka dont know why i love you',\n",
-       " 'i forgot to remember to forget',\n",
-       " 'i froze up',\n",
-       " 'i get a kick out of you',\n",
-       " 'i got a woman',\n",
-       " 'i got the blues',\n",
-       " 'i got to find my baby',\n",
-       " 'i just dont understand',\n",
-       " 'i just want to make love to you',\n",
-       " 'i just want to see his face',\n",
-       " 'i need you baby mona',\n",
-       " 'i promise',\n",
-       " 'i think im going mad',\n",
-       " 'i want none of this',\n",
-       " 'i want to be loved',\n",
-       " 'i want to know',\n",
-       " 'id much rather be with the boys',\n",
-       " 'if i was a dancer dance part 2',\n",
-       " 'if you cant rock me',\n",
-       " 'if you let me',\n",
-       " 'if you love me baby',\n",
-       " 'if you need me',\n",
-       " 'if you really want to be my friend',\n",
-       " 'if youve got trouble',\n",
-       " 'ill be on my way',\n",
-       " 'ill get you',\n",
-       " 'ill wear it proudly',\n",
-       " 'ill wind',\n",
-       " 'im a king bee',\n",
-       " 'im coming up',\n",
-       " 'im down',\n",
-       " 'im going down',\n",
-       " 'im gonna drive',\n",
-       " 'im gonna sit right down and cry over you',\n",
-       " 'im not signifying',\n",
-       " 'im talking about you',\n",
-       " 'in another land',\n",
-       " 'in spite of all the danger',\n",
-       " 'india',\n",
-       " 'india rubber',\n",
-       " 'inside my head',\n",
-       " 'intro',\n",
-       " 'intro excerpt from fanfare for the common man',\n",
-       " 'it hurts me too',\n",
-       " 'it should be you',\n",
-       " 'its all over now',\n",
-       " 'its for you',\n",
-       " 'its not easy',\n",
-       " 'ive been loving you too long',\n",
-       " 'james bond theme',\n",
-       " 'jazz piano song',\n",
-       " 'jerusalem',\n",
-       " 'jigsaw puzzle',\n",
-       " 'jingle bells',\n",
-       " 'jiving sister fanny',\n",
-       " 'john lennon vs bill oreilly',\n",
-       " 'john wesley harding',\n",
-       " 'johnny b goode',\n",
-       " 'jump on top of me',\n",
-       " 'junk',\n",
-       " 'just a rumour',\n",
-       " 'just a rumour speech',\n",
-       " 'kansas city',\n",
-       " 'keep strong',\n",
-       " 'keep your hands off my baby',\n",
-       " 'keith richards introduction of the who',\n",
-       " 'keys to your love',\n",
-       " 'kid a tracklist album cover',\n",
-       " 'killer cars',\n",
-       " 'komm gib mir deine hand',\n",
-       " 'ladies and gentlemen the rolling stones',\n",
-       " 'lady jane',\n",
-       " 'ladytron',\n",
-       " 'leave my kitten alone',\n",
-       " 'lend me your comb',\n",
-       " 'let it loose',\n",
-       " 'let it rock',\n",
-       " 'lets dance',\n",
-       " 'lewis mistreated',\n",
-       " 'lift',\n",
-       " 'like dreamers do',\n",
-       " 'linda lu',\n",
-       " 'little queenie',\n",
-       " 'little t a',\n",
-       " 'lonesome tears in my eyes',\n",
-       " 'long long while',\n",
-       " 'look what youve done',\n",
-       " 'looking tired',\n",
-       " 'losing my touch',\n",
-       " 'love',\n",
-       " 'love of the loved',\n",
-       " 'love these goon shows',\n",
-       " 'lozenge of love',\n",
-       " 'lucille',\n",
-       " 'lull',\n",
-       " 'luxury',\n",
-       " 'mailman bring me no more blues',\n",
-       " 'mannish boy',\n",
-       " 'manowar',\n",
-       " 'mantua',\n",
-       " 'maquiladora',\n",
-       " 'matchbox',\n",
-       " 'medley kansas cityhey hey hey hey',\n",
-       " 'medley rip it up shake rattle and roll blue suede shoes',\n",
-       " 'meet me in the bottom',\n",
-       " 'meeting in the aisle',\n",
-       " 'melatonin',\n",
-       " 'melody',\n",
-       " 'memo from turner',\n",
-       " 'memory motel',\n",
-       " 'memphis',\n",
-       " 'memphis tennessee',\n",
-       " 'mercy mercy',\n",
-       " 'mick jaggers and john lennons introduction of the dirty mac',\n",
-       " 'mick jaggers introduction of rock roll circus',\n",
-       " 'mick jaggers introduction to jethro tull',\n",
-       " 'million dollar question',\n",
-       " 'miss amanda jones',\n",
-       " 'miss you dr dre remix 2002',\n",
-       " 'missing links bootleg',\n",
-       " 'molasses',\n",
-       " 'mona',\n",
-       " 'money',\n",
-       " 'moonlight',\n",
-       " 'moonlight bay',\n",
-       " 'moonlight mile',\n",
-       " 'mothers little helper',\n",
-       " 'movie medley',\n",
-       " 'mr b',\n",
-       " 'my bonnie',\n",
-       " 'my bonnie english intro',\n",
-       " 'my bonnie german intro',\n",
-       " 'my girl',\n",
-       " 'my obsession',\n",
-       " 'no expectations',\n",
-       " 'no reply demo',\n",
-       " 'nobody does it better',\n",
-       " 'nobodys child',\n",
-       " 'not guilty',\n",
-       " 'nothin shakin',\n",
-       " 'nothin shakin but the leaves on the trees',\n",
-       " 'nothing from nothing',\n",
-       " 'nothing touches me',\n",
-       " 'oh baby we got a good thing goin',\n",
-       " 'old brown shoe',\n",
-       " 'on the beach',\n",
-       " 'on with the show',\n",
-       " 'one and one is two',\n",
-       " 'one more shot',\n",
-       " 'one more try',\n",
-       " 'ooh my arms',\n",
-       " 'ooh my arms speech',\n",
-       " 'ooh my soul',\n",
-       " 'open pick',\n",
-       " 'out of time',\n",
-       " 'packt like sardines in a crushd tin box',\n",
-       " 'paint it blacker',\n",
-       " 'palo alto',\n",
-       " 'pantomime everywhere its christmas',\n",
-       " 'parachute woman',\n",
-       " 'pass the wine sophia loren',\n",
-       " 'pay your dues',\n",
-       " 'pearly',\n",
-       " 'pedro the fisherman',\n",
-       " 'permanent daylight',\n",
-       " 'petrol gang',\n",
-       " 'phillipa chicken',\n",
-       " 'play with fire',\n",
-       " 'please go home',\n",
-       " 'plundered my soul',\n",
-       " 'poison ivy',\n",
-       " 'polyethylene parts 1 2',\n",
-       " 'pop is dead',\n",
-       " 'prodigal son',\n",
-       " 'punchdrunk lovesick singalong',\n",
-       " 'rain',\n",
-       " 'rain fall down william remix',\n",
-       " 'ready teddy',\n",
-       " 'real love',\n",
-       " 'reelin and rockin',\n",
-       " 'reminiscing',\n",
-       " 'revolution',\n",
-       " 'revolution i',\n",
-       " 'rhinestone cowboy',\n",
-       " 'ride on baby',\n",
-       " 'riding on a bus',\n",
-       " 'rip it up medley',\n",
-       " 'road runner',\n",
-       " 'ruby baby',\n",
-       " 'sad day',\n",
-       " 'saints',\n",
-       " 'saints when the saints go marching in',\n",
-       " 'salt of the earth',\n",
-       " 'searchin',\n",
-       " 'september in the rain',\n",
-       " 'set fire to that lot',\n",
-       " 'set fire to that lot speech',\n",
-       " 'sgt peppers lonely hearts club band band documentary multimedia',\n",
-       " 'sgt peppers lonely hearts club band reprise',\n",
-       " 'sha la la la la',\n",
-       " 'shake rattle and roll',\n",
-       " 'shake your hips',\n",
-       " 'she said yeah',\n",
-       " 'she smiled sweetly',\n",
-       " 'shes a rainbow',\n",
-       " 'short and curlies',\n",
-       " 'shout',\n",
-       " 'sie liebt dich',\n",
-       " 'silver train',\n",
-       " 'sing a song for you',\n",
-       " 'sing this all together',\n",
-       " 'sing this all together see what happens',\n",
-       " 'sinking ship',\n",
-       " 'sister morphine',\n",
-       " 'sittin on a fence',\n",
-       " 'sleepy city',\n",
-       " 'slow down',\n",
-       " 'so divine aladdin story',\n",
-       " 'so how come no one loves me',\n",
-       " 'soldier of love',\n",
-       " 'some other guy',\n",
-       " 'some things just stick in your mind',\n",
-       " 'somebody else',\n",
-       " 'someone else',\n",
-       " 'something happened to me yesterday',\n",
-       " 'something with blue jay way transition',\n",
-       " 'somewhere',\n",
-       " 'soul survivor',\n",
-       " 'sour milk sea',\n",
-       " 'spectre',\n",
-       " 'staircase',\n",
-       " 'stand by me',\n",
-       " 'star star',\n",
-       " 'stealing my heart',\n",
-       " 'step inside love',\n",
-       " 'step inside love los paranoias',\n",
-       " 'still a fool',\n",
-       " 'stoned',\n",
-       " 'stop breaking down',\n",
-       " 'stranger in my arms',\n",
-       " 'strawberry fields forever take 1',\n",
-       " 'strawberry fields forever take 7 edit piece',\n",
-       " 'stray cat blues',\n",
-       " 'stuck out all alone',\n",
-       " 'stupid car',\n",
-       " 'stupid girl',\n",
-       " 'summertime blues',\n",
-       " 'supercollider',\n",
-       " 'sure to fall',\n",
-       " 'sure to fall in love with you',\n",
-       " 'surprise surprise',\n",
-       " 'susie q',\n",
-       " 'suzy parker',\n",
-       " 'swanee river',\n",
-       " 'sway',\n",
-       " 'sweet black angel',\n",
-       " 'sweet georgia brown',\n",
-       " 'sweet little sixteen',\n",
-       " 'sympathy for the devil fatboy slim remix',\n",
-       " 'sympathy for the devil the neptunes remix',\n",
-       " 'take good care of my baby',\n",
-       " 'take it or leave it',\n",
-       " 'talk show host',\n",
-       " 'talkin about you',\n",
-       " 'teddy boy',\n",
-       " 'tell me',\n",
-       " 'tell me baby how many times',\n",
-       " 'tell me why ep',\n",
-       " 'tell me youre coming back',\n",
-       " 'thank you girl',\n",
-       " 'that girl belongs to yesterday',\n",
-       " 'that means a lot',\n",
-       " 'thatll be the day',\n",
-       " 'thats alright mama',\n",
-       " 'the amazing sounds of orgy',\n",
-       " 'the beatles 1968 christmas record',\n",
-       " 'the beatles christmas record',\n",
-       " 'the beatles seventh christmas record',\n",
-       " 'the beatles third christmas record',\n",
-       " 'the butcher',\n",
-       " 'the daily mail',\n",
-       " 'the fool on the hill demo',\n",
-       " 'the fool on the hill take 4',\n",
-       " 'the happy rishikesh song',\n",
-       " 'the harder they come',\n",
-       " 'the hippy hippy shake',\n",
-       " 'the honeymoon song',\n",
-       " 'the inner light',\n",
-       " 'the lantern',\n",
-       " 'the new generation',\n",
-       " 'the rocky road to dublin',\n",
-       " 'the sheik of araby',\n",
-       " 'the singer not the song',\n",
-       " 'the storm',\n",
-       " 'the thief',\n",
-       " 'the trickster',\n",
-       " 'the under assistant west coast promotion man',\n",
-       " 'these are my twisted words',\n",
-       " 'think',\n",
-       " 'this boy',\n",
-       " 'three cool cats',\n",
-       " 'through the lonely nights',\n",
-       " 'till the next goodbye',\n",
-       " 'time waits for no one',\n",
-       " 'title 5',\n",
-       " 'to be a brilliant light',\n",
-       " 'to know her is to love her',\n",
-       " 'too much monkey business',\n",
-       " 'torn and frayed',\n",
-       " 'transatlantic drawl',\n",
-       " 'travellin man',\n",
-       " 'try a little harder',\n",
-       " 'turd on the run',\n",
-       " 'under the board walk',\n",
-       " 'union city blue',\n",
-       " 'untogether',\n",
-       " 'upside down',\n",
-       " 'ventilator blues',\n",
-       " 'wake up in the morning',\n",
-       " 'walking the dog',\n",
-       " 'walking through the sleepy city',\n",
-       " 'watching rainbows',\n",
-       " 'we are wasting time',\n",
-       " 'we love you',\n",
-       " 'we want the stones',\n",
-       " 'were wastin time',\n",
-       " 'what a shame',\n",
-       " 'what goes on girl',\n",
-       " 'what is it that you say',\n",
-       " 'what is that you say',\n",
-       " 'what to do',\n",
-       " 'whatd i say',\n",
-       " 'whats the new mary jane',\n",
-       " 'when im sixtyfour',\n",
-       " 'when the saints go marchin in',\n",
-       " 'who am i',\n",
-       " 'whos been sleeping here',\n",
-       " 'whos driving your plane',\n",
-       " 'why',\n",
-       " 'wicked child',\n",
-       " 'winter',\n",
-       " 'wish i never met you',\n",
-       " 'wish you were here',\n",
-       " 'within you without youtomorrow never knows',\n",
-       " 'wonderwall',\n",
-       " 'words of love ep',\n",
-       " 'worrywort',\n",
-       " 'ya ya',\n",
-       " 'yes i am',\n",
-       " 'yes it is',\n",
-       " 'yesterdays papers',\n",
-       " 'you better move on',\n",
-       " 'you can make it if you try',\n",
-       " 'you cant catch me',\n",
-       " 'you gotta move',\n",
-       " 'you know my name',\n",
-       " 'you know my name look up the number',\n",
-       " 'you know what to do',\n",
-       " 'you never wash up after yourself',\n",
-       " 'youll be mine',\n",
-       " 'young blood',\n",
-       " 'youve got a hold on me',\n",
-       " 'yove got to hide your love away'}"
+       "[('twist and shout', 'Twist And Shout - Live / Remastered', 'Twist and Shout'),\n",
+       " ('twist and shout',\n",
+       "  'Twist And Shout - Live / Remastered',\n",
+       "  'Twist and shout - reloved version'),\n",
+       " ('twist and shout',\n",
+       "  'Twist And Shout - Live / Remastered',\n",
+       "  'Twist And Shout - Remastered 2009'),\n",
+       " ('roll over beethoven',\n",
+       "  'Roll Over Beethoven - Live / Remastered',\n",
+       "  'Roll Over Beethoven'),\n",
+       " ('roll over beethoven',\n",
+       "  'Roll Over Beethoven - Live / Remastered',\n",
+       "  'Roll Over Beethoven'),\n",
+       " ('she loves you', 'She Loves You - Live / Remastered', 'She Loves You'),\n",
+       " ('she loves you',\n",
+       "  'She Loves You - Live / Remastered',\n",
+       "  'She loves you - reloved version'),\n",
+       " ('i want to hold your hand',\n",
+       "  'I Want To Hold Your Hand - Live / Bonus Track',\n",
+       "  'I Want to Hold Your Hand'),\n",
+       " ('i want to hold your hand',\n",
+       "  'I Want To Hold Your Hand - Live / Bonus Track',\n",
+       "  'I Want to Hold Your Hand'),\n",
+       " ('love me do', 'Love Me Do - Mono / Remastered 2015', 'Love Me Do'),\n",
+       " ('love me do',\n",
+       "  'Love Me Do - Mono / Remastered 2015',\n",
+       "  'Love Me Do - Spankox Liverpool Remix'),\n",
+       " ('she loves you', 'She Loves You - Mono / Remastered 2015', 'She Loves You'),\n",
+       " ('she loves you',\n",
+       "  'She Loves You - Mono / Remastered 2015',\n",
+       "  'She loves you - reloved version'),\n",
+       " ('i want to hold your hand',\n",
+       "  'I Want To Hold Your Hand - Remastered 2015',\n",
+       "  'I Want to Hold Your Hand'),\n",
+       " ('i want to hold your hand',\n",
+       "  'I Want To Hold Your Hand - Remastered 2015',\n",
+       "  'I Want to Hold Your Hand'),\n",
+       " ('yesterday', 'Yesterday - Remastered 2015', 'Yesterday'),\n",
+       " ('yesterday', 'Yesterday - Remastered 2015', 'Yesterday'),\n",
+       " ('i will', 'I Will - Remastered 2009', 'I Will'),\n",
+       " ('i will', 'I Will - Remastered 2009', 'I Will'),\n",
+       " ('youve got to hide your love away',\n",
+       "  \"You've Got To Hide Your Love Away - Remastered 2009\",\n",
+       "  \"You've Got to Hide Your Love Away\"),\n",
+       " ('youve got to hide your love away',\n",
+       "  \"You've Got To Hide Your Love Away - Remastered 2009\",\n",
+       "  \"You've Got To Hide Your Love Away - Take 5, Mono\"),\n",
+       " ('yesterday', 'Yesterday - Remastered 2009', 'Yesterday'),\n",
+       " ('yesterday', 'Yesterday - Remastered 2009', 'Yesterday'),\n",
+       " ('little by little', 'Little By Little', 'Little by Little'),\n",
+       " ('little by little', 'Little By Little', 'Little By Little'),\n",
+       " ('roll over beethoven',\n",
+       "  'Roll Over Beethoven - Remastered 2009',\n",
+       "  'Roll Over Beethoven'),\n",
+       " ('roll over beethoven',\n",
+       "  'Roll Over Beethoven - Remastered 2009',\n",
+       "  'Roll Over Beethoven'),\n",
+       " ('i wanna be your man',\n",
+       "  'I Wanna Be Your Man - Remastered 2009',\n",
+       "  'I Wanna Be Your Man'),\n",
+       " ('i wanna be your man',\n",
+       "  'I Wanna Be Your Man - Remastered 2009',\n",
+       "  'I Wanna Be Your Man'),\n",
+       " ('money thats what i want',\n",
+       "  \"Money (That's What I Want) - Remastered 2009\",\n",
+       "  \"Money (That's What I Want)\"),\n",
+       " ('money thats what i want',\n",
+       "  \"Money (That's What I Want) - Remastered 2009\",\n",
+       "  \"Money (That's What I Want) - Remastered 2009\"),\n",
+       " ('please please me',\n",
+       "  'Please Please Me - Remastered 2009',\n",
+       "  'Please Please Me'),\n",
+       " ('please please me',\n",
+       "  'Please Please Me - Remastered 2009',\n",
+       "  'Please, Please Me'),\n",
+       " ('love me do', 'Love Me Do - Remastered 2009', 'Love Me Do'),\n",
+       " ('love me do',\n",
+       "  'Love Me Do - Remastered 2009',\n",
+       "  'Love Me Do - Spankox Liverpool Remix'),\n",
+       " ('ps i love you', 'P.S. I Love You - Remastered 2009', 'P.S. I Love You'),\n",
+       " ('ps i love you',\n",
+       "  'P.S. I Love You - Remastered 2009',\n",
+       "  'P.s. i love you - reloved version'),\n",
+       " ('twist and shout', 'Twist And Shout - Remastered 2009', 'Twist and Shout'),\n",
+       " ('twist and shout',\n",
+       "  'Twist And Shout - Remastered 2009',\n",
+       "  'Twist and shout - reloved version'),\n",
+       " ('twist and shout',\n",
+       "  'Twist And Shout - Remastered 2009',\n",
+       "  'Twist And Shout - Remastered 2009'),\n",
+       " ('i will', 'I Will', 'I Will'),\n",
+       " ('i will', 'I Will', 'I Will'),\n",
+       " ('paranoid android', 'Paranoid Android', 'Paranoid Android'),\n",
+       " ('paranoid android', 'Paranoid Android', 'Paranoid Android'),\n",
+       " ('high and dry', 'High And Dry', 'High and Dry'),\n",
+       " ('high and dry', 'High And Dry', 'High And Dry'),\n",
+       " ('wild horses',\n",
+       "  'Wild Horses - Live - 2009 Re-Mastered Digital Version',\n",
+       "  'Wild Horses'),\n",
+       " ('wild horses',\n",
+       "  'Wild Horses - Live - 2009 Re-Mastered Digital Version',\n",
+       "  'Wild Horses'),\n",
+       " ('pain in my heart',\n",
+       "  'Pain In My Heart - Live In Ireland / 1965',\n",
+       "  'Pain In My Heart'),\n",
+       " ('pain in my heart',\n",
+       "  'Pain In My Heart - Live In Ireland / 1965',\n",
+       "  'Pain In My Heart - Live In Ireland / 1965')]"
       ]
      },
-     "execution_count": 57,
+     "execution_count": 74,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "genius_only"
+    "[(t['ctitle'], t['name'], g['title']) \n",
+    " for t in tracks.find()\n",
+    " for g in genius_tracks.find({'ctitle': t['ctitle']})\n",
+    " if genius_tracks.find({'ctitle': t['ctitle']}).count() > 1]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Now to see what the differences are. Find the tracks that are in both collections, and tracks that are in only one."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 58,
+   "execution_count": 35,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "['revolution', 'revolution i']"
+       "(499, 563, 57)"
       ]
      },
-     "execution_count": 58,
+     "execution_count": 35,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "[t for t in genius_only if 'revolution' in t]"
+    "in_both = set((g['ctitle'], g['primary_artist']['name'])\n",
+    "              for g in genius_tracks.find({}, ['ctitle', 'primary_artist.name']) \n",
+    "              if tracks.find({'ctitle': g['ctitle']}).count())\n",
+    "\n",
+    "genius_only = set((g['ctitle'], g['primary_artist']['name']) \n",
+    "                  for g in genius_tracks.find({}, ['ctitle', 'primary_artist.name']) \n",
+    "                  if not tracks.find({'ctitle': g['ctitle']}).count())\n",
+    "\n",
+    "spotify_only = set((s['ctitle'], s['artist_name'])\n",
+    "                   for s in tracks.find({}, ['ctitle', 'artist_name']) \n",
+    "                   if not genius_tracks.find({'ctitle': s['ctitle']}).count())\n",
+    "\n",
+    "len(in_both), len(genius_only), len(spotify_only)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
-   "metadata": {},
+   "execution_count": 36,
+   "metadata": {
+    "scrolled": true
+   },
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "['revolution 1']"
+       "[('bloom jamie xx rework', 'Radiohead'),\n",
+       " ('sea of monsters', 'George Martin'),\n",
+       " ('just my imagination', 'The Rolling Stones'),\n",
+       " ('jumping jack flash', 'The Rolling Stones'),\n",
+       " ('pepperland laid waste', 'George Martin'),\n",
+       " ('little ta', 'The Rolling Stones'),\n",
+       " ('kansas city heyheyheyhey', 'The Beatles'),\n",
+       " ('bullet proof i wish i was', 'Radiohead'),\n",
+       " ('sea of holes', 'George Martin'),\n",
+       " ('packt like sardines in a crushed tin box', 'Radiohead'),\n",
+       " ('codex illum sphere', 'Radiohead'),\n",
+       " ('outro', 'Jimi Hendrix'),\n",
+       " ('pepperland', 'George Martin'),\n",
+       " ('key to the highway', 'The Rolling Stones'),\n",
+       " ('march of the meanies', 'George Martin'),\n",
+       " ('dollars cents', 'Radiohead'),\n",
+       " ('little by little shed', 'Radiohead'),\n",
+       " ('sea of time', 'George Martin'),\n",
+       " ('faraway eyes', 'The Rolling Stones'),\n",
+       " ('i will los angeles version', 'Radiohead'),\n",
+       " ('everybody needs somebody to love finale', 'The Rolling Stones'),\n",
+       " ('a punch up at a wedding', 'Radiohead'),\n",
+       " ('revolution 1', 'The Beatles'),\n",
+       " ('untitled', 'Radiohead'),\n",
+       " ('when im sixty four', 'The Beatles')]"
       ]
      },
-     "execution_count": 59,
+     "execution_count": 36,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "[t for t in spotify_only if 'revolution' in t]"
+    "[s for s in spotify_only \n",
+    " if 'rmx' not in s[0]\n",
+    " if 'remix' not in s[0]\n",
+    " if 'live' not in s[0]\n",
+    " if 'intro' not in s[0]\n",
+    "]"
    ]
   },
   {
-   "cell_type": "markdown",
-   "metadata": {
-    "collapsed": true
-   },
+   "cell_type": "code",
+   "execution_count": 37,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('ladies and gentlemen the rolling stones', 'The Rolling Stones'),\n",
+       " ('the butcher', 'Radiohead'),\n",
+       " ('eds scary song', 'Radiohead'),\n",
+       " ('long long while', 'The Rolling Stones'),\n",
+       " ('till the next goodbye', 'The Rolling Stones'),\n",
+       " ('wicked child', 'Radiohead'),\n",
+       " ('bishops robes', 'Radiohead'),\n",
+       " ('hey crawdaddy', 'The Rolling Stones'),\n",
+       " ('baby please dont go', 'The Rolling Stones'),\n",
+       " ('ready teddy', 'The Beatles'),\n",
+       " ('somewhere', 'Ali brustofski'),\n",
+       " ('fool to cry', 'The Rolling Stones'),\n",
+       " ('john lennon vs bill oreilly', 'Nice Peter'),\n",
+       " ('stray cat blues', 'The Rolling Stones'),\n",
+       " ('because i know you love me so', 'The Beatles'),\n",
+       " ('2120 south michigan avenue', 'The Rolling Stones'),\n",
+       " ('jump on top of me', 'The Rolling Stones'),\n",
+       " ('cinnamon girl', 'Radiohead'),\n",
+       " ('john wesley harding', 'The Rolling Stones'),\n",
+       " ('the honeymoon song', 'The Beatles'),\n",
+       " ('dont ever change', 'The Beatles'),\n",
+       " ('mantua', 'Radiohead'),\n",
+       " ('fanny mae', 'The Rolling Stones'),\n",
+       " ('paint it blacker', 'Plan B'),\n",
+       " ('i froze up', 'Radiohead'),\n",
+       " ('permanent daylight', 'Radiohead'),\n",
+       " ('johnny b goode', 'The Beatles'),\n",
+       " ('silver train', 'The Rolling Stones'),\n",
+       " ('junk', 'The Beatles'),\n",
+       " ('please go home', 'The Rolling Stones'),\n",
+       " ('sie liebt dich', 'The Beatles'),\n",
+       " ('come togetherdear prudence', 'The Beatles'),\n",
+       " ('some other guy', 'The Beatles'),\n",
+       " ('i call your name', 'The Beatles'),\n",
+       " ('mona', 'The Rolling Stones'),\n",
+       " ('complicated', 'The Rolling Stones'),\n",
+       " ('little queenie', 'The Rolling Stones'),\n",
+       " ('memphis', 'The Beatles'),\n",
+       " ('glad all over', 'The Beatles'),\n",
+       " ('all sold out', 'The Rolling Stones'),\n",
+       " ('sympathy for the devil the neptunes remix', 'The Rolling Stones'),\n",
+       " ('blue turns to grey', 'The Rolling Stones'),\n",
+       " ('we are wasting time', 'The Rolling Stones'),\n",
+       " ('its for you', 'The Beatles'),\n",
+       " ('good times bad times', 'The Rolling Stones'),\n",
+       " ('ooh my soul', 'The Beatles'),\n",
+       " ('cry to me', 'The Rolling Stones'),\n",
+       " ('egyptian song', 'Radiohead'),\n",
+       " ('stoned', 'The Rolling Stones'),\n",
+       " ('i dont know why aka dont know why i love you', 'The Rolling Stones'),\n",
+       " ('get off of my cloud', 'The Rolling Stones'),\n",
+       " ('star star', 'The Rolling Stones'),\n",
+       " ('just a rumour', 'The Beatles'),\n",
+       " ('id much rather be with the boys', 'The Rolling Stones'),\n",
+       " ('petrol gang', 'The Rolling Stones'),\n",
+       " ('in another land', 'The Rolling Stones'),\n",
+       " ('you know what to do', 'The Beatles'),\n",
+       " ('can you hear the music', 'The Rolling Stones'),\n",
+       " ('you cant catch me', 'The Rolling Stones'),\n",
+       " ('my bonnie', 'The Beatles'),\n",
+       " ('money', 'The Rolling Stones'),\n",
+       " ('honest i do', 'The Rolling Stones'),\n",
+       " ('everything is turning to gold', 'The Rolling Stones'),\n",
+       " ('cut a hole', 'Radiohead'),\n",
+       " ('susie q', 'The Rolling Stones'),\n",
+       " ('ooh my arms', 'The Beatles'),\n",
+       " ('on the beach', 'Radiohead'),\n",
+       " ('sha la la la la', 'The Beatles'),\n",
+       " ('yesterdays papers', 'The Rolling Stones'),\n",
+       " ('my girl', 'The Rolling Stones'),\n",
+       " ('dear doctor', 'The Rolling Stones'),\n",
+       " ('i want to know', 'On A Friday'),\n",
+       " ('a moon shaped pool tracklist album cover', 'Radiohead'),\n",
+       " ('four guys', 'James Richards'),\n",
+       " ('i get a kick out of you', 'The Rolling Stones'),\n",
+       " ('shout', 'The Beatles'),\n",
+       " ('let it rock', 'The Rolling Stones'),\n",
+       " ('travellin man', 'The Rolling Stones'),\n",
+       " ('stealing my heart', 'The Rolling Stones'),\n",
+       " ('when im sixtyfour', 'The Beatles'),\n",
+       " ('criss cross man', 'The Rolling Stones'),\n",
+       " ('come on', 'The Rolling Stones'),\n",
+       " ('union city blue', 'Radiohead'),\n",
+       " ('doom and gloom', 'The Rolling Stones'),\n",
+       " ('baby whats wrong', 'The Rolling Stones'),\n",
+       " ('nobodys child', 'The Beatles'),\n",
+       " ('sweet little sixteen', 'The Beatles'),\n",
+       " ('within you without youtomorrow never knows', 'The Beatles'),\n",
+       " ('so divine aladdin story', 'The Rolling Stones'),\n",
+       " ('upside down', 'Radiohead'),\n",
+       " ('all things must pass', 'The Beatles'),\n",
+       " ('besame mucho', 'The Beatles'),\n",
+       " ('anyway you look at it', 'The Rolling Stones'),\n",
+       " ('carol', 'The Rolling Stones'),\n",
+       " ('winter', 'The Rolling Stones'),\n",
+       " ('gangsters maul', 'The Rolling Stones'),\n",
+       " ('what goes on girl', 'The Beatles'),\n",
+       " ('lonesome tears in my eyes', 'The Beatles'),\n",
+       " ('meet me in the bottom', 'The Rolling Stones'),\n",
+       " ('missing links bootleg', 'Plan B'),\n",
+       " ('through the lonely nights', 'The Rolling Stones'),\n",
+       " ('no expectations', 'The Rolling Stones'),\n",
+       " ('shake your hips', 'The Rolling Stones'),\n",
+       " ('ill get you', 'The Beatles'),\n",
+       " ('the beatles seventh christmas record', 'The Beatles'),\n",
+       " ('words of love ep', 'The Beatles'),\n",
+       " ('falling in love again', 'The Beatles'),\n",
+       " ('dont let me down', 'The Beatles'),\n",
+       " ('somebody else', 'Radiohead'),\n",
+       " ('reminiscing', 'The Beatles'),\n",
+       " ('the hippy hippy shake', 'The Beatles'),\n",
+       " ('ya ya', 'The Beatles'),\n",
+       " ('im down', 'The Beatles'),\n",
+       " ('cry for a shadow', 'The Beatles'),\n",
+       " ('doo doo doo doo doo heartbreaker', 'The Rolling Stones'),\n",
+       " ('pop is dead', 'Radiohead'),\n",
+       " ('love of the loved', 'The Beatles'),\n",
+       " ('dancing with mr d', 'The Rolling Stones'),\n",
+       " ('the thief', 'Radiohead'),\n",
+       " ('jazz piano song', 'The Beatles'),\n",
+       " ('da doo ron ron', 'The Rolling Stones'),\n",
+       " ('lets dance', 'The Beatles'),\n",
+       " ('one more try', 'The Rolling Stones'),\n",
+       " ('andrews blues', 'The Rolling Stones'),\n",
+       " ('memphis tennessee', 'The Beatles'),\n",
+       " ('sister morphine', 'The Rolling Stones'),\n",
+       " ('give it up', 'On A Friday'),\n",
+       " ('blackbirdyesterday', 'The Beatles'),\n",
+       " ('title 5', 'The Rolling Stones'),\n",
+       " ('sad day', 'The Rolling Stones'),\n",
+       " ('i am waiting', 'The Rolling Stones'),\n",
+       " ('a picture of you', 'The Beatles'),\n",
+       " ('dance', 'The Rolling Stones'),\n",
+       " ('revolution', 'The Beatles'),\n",
+       " ('youll be mine', 'The Beatles'),\n",
+       " ('lewis mistreated', 'Radiohead'),\n",
+       " ('keep your hands off my baby', 'The Beatles'),\n",
+       " ('lady jane', 'The Rolling Stones'),\n",
+       " ('following the river', 'The Rolling Stones'),\n",
+       " ('the lantern', 'The Rolling Stones'),\n",
+       " ('i got a woman', 'The Beatles'),\n",
+       " ('walking through the sleepy city', 'The Rolling Stones'),\n",
+       " ('aint that loving you baby', 'The Rolling Stones'),\n",
+       " ('sing this all together', 'The Rolling Stones'),\n",
+       " ('im gonna sit right down and cry over you', 'The Beatles'),\n",
+       " ('in spite of all the danger', 'The Beatles'),\n",
+       " ('crying waiting hoping', 'The Beatles'),\n",
+       " ('we want the stones', 'The Rolling Stones'),\n",
+       " ('the beatles 1968 christmas record', 'The Beatles'),\n",
+       " ('miss amanda jones', 'The Rolling Stones'),\n",
+       " ('wish i never met you', 'The Rolling Stones'),\n",
+       " ('sweet georgia brown', 'The Beatles'),\n",
+       " ('inside my head', 'Radiohead'),\n",
+       " ('old brown shoe', 'The Beatles'),\n",
+       " ('yes i am', 'Radiohead'),\n",
+       " ('beatle greetings', 'The Beatles'),\n",
+       " ('just a rumour speech', 'The Beatles'),\n",
+       " ('nothin shakin', 'The Beatles'),\n",
+       " ('hound dog', 'The Rolling Stones'),\n",
+       " ('stuck out all alone', 'The Rolling Stones'),\n",
+       " ('nothin shakin but the leaves on the trees', 'The Beatles'),\n",
+       " ('2000 light years from home', 'The Rolling Stones'),\n",
+       " ('ladytron', 'Radiohead'),\n",
+       " ('shes a rainbow', 'The Rolling Stones'),\n",
+       " ('no reply demo', 'The Beatles'),\n",
+       " ('im not signifying', 'The Rolling Stones'),\n",
+       " ('i want to be loved', 'The Rolling Stones'),\n",
+       " ('bebopalula', 'The Beatles'),\n",
+       " ('walking the dog', 'The Rolling Stones'),\n",
+       " ('stop breaking down', 'The Rolling Stones'),\n",
+       " ('whos been sleeping here', 'The Rolling Stones'),\n",
+       " ('downtown suzie', 'The Rolling Stones'),\n",
+       " ('real love', 'The Beatles'),\n",
+       " ('keep strong', 'On A Friday'),\n",
+       " ('yove got to hide your love away', 'The Beatles'),\n",
+       " ('this boy', 'The Beatles'),\n",
+       " ('the beatles third christmas record', 'The Beatles'),\n",
+       " ('the harder they come', 'The Rolling Stones'),\n",
+       " ('try a little harder', 'The Rolling Stones'),\n",
+       " ('kid a tracklist album cover', 'Radiohead'),\n",
+       " ('big boots', 'Radiohead'),\n",
+       " ('aint too proud to beg', 'The Rolling Stones'),\n",
+       " ('flight 505', 'The Rolling Stones'),\n",
+       " ('ill be on my way', 'The Beatles'),\n",
+       " ('cant get next to you', 'The Rolling Stones'),\n",
+       " ('im coming up', 'On A Friday'),\n",
+       " ('backstreet girl', 'The Rolling Stones'),\n",
+       " ('final show', 'Beatles Candlestick Park Setlist'),\n",
+       " ('wonderwall', 'Radiohead'),\n",
+       " ('down in the bottom', 'The Rolling Stones'),\n",
+       " ('you better move on', 'The Rolling Stones'),\n",
+       " ('each and every day of the year', 'The Rolling Stones'),\n",
+       " ('give peace a chance', 'The Beatles'),\n",
+       " ('a punchup at a wedding', 'Radiohead'),\n",
+       " ('why', 'The Beatles'),\n",
+       " ('goodbye', 'The Beatles'),\n",
+       " ('im gonna drive', 'The Rolling Stones'),\n",
+       " ('short and curlies', 'The Rolling Stones'),\n",
+       " ('3', 'The Rolling Stones'),\n",
+       " ('19th nervous breakdown', 'The Rolling Stones'),\n",
+       " ('pay your dues', 'The Rolling Stones'),\n",
+       " ('melody', 'The Rolling Stones'),\n",
+       " ('rhinestone cowboy', 'Radiohead'),\n",
+       " ('spectre', 'Radiohead'),\n",
+       " ('supercollider', 'Radiohead'),\n",
+       " ('if you cant rock me', 'The Rolling Stones'),\n",
+       " ('reelin and rockin', 'The Rolling Stones'),\n",
+       " ('its not easy', 'The Rolling Stones'),\n",
+       " ('think', 'The Rolling Stones'),\n",
+       " ('eleanor rigbyjulia transition', 'The Beatles'),\n",
+       " ('mannish boy', 'The Rolling Stones'),\n",
+       " ('phillipa chicken', 'Radiohead'),\n",
+       " ('cherry oh baby', 'The Rolling Stones'),\n",
+       " ('its all over now', 'The Rolling Stones'),\n",
+       " ('talkin about you', 'The Rolling Stones'),\n",
+       " ('matchbox', 'The Beatles'),\n",
+       " ('revolution i', 'The Beatles'),\n",
+       " ('ooh my arms speech', 'The Beatles'),\n",
+       " ('whatd i say', 'The Beatles'),\n",
+       " ('saints when the saints go marching in', 'The Beatles'),\n",
+       " ('bad boy', 'The Beatles'),\n",
+       " ('bitches talkin', 'Frank Ocean'),\n",
+       " ('congratulations', 'The Rolling Stones'),\n",
+       " ('good times', 'The Rolling Stones'),\n",
+       " ('thatll be the day', 'The Beatles'),\n",
+       " ('gnik nus', 'The Beatles'),\n",
+       " ('around and around', 'The Rolling Stones'),\n",
+       " ('ive been loving you too long', 'The Rolling Stones'),\n",
+       " ('i want none of this', 'Radiohead'),\n",
+       " ('saints', 'The Beatles'),\n",
+       " ('something happened to me yesterday', 'The Rolling Stones'),\n",
+       " ('what is that you say', 'Radiohead'),\n",
+       " ('glass onion love remix', 'The Beatles'),\n",
+       " ('gotta get away', 'The Rolling Stones'),\n",
+       " ('what a shame', 'The Rolling Stones'),\n",
+       " ('i promise', 'Radiohead'),\n",
+       " ('climbing up a bloody great hill', 'Radiohead'),\n",
+       " ('down in eastern australia', 'The Beatles'),\n",
+       " ('meeting in the aisle', 'Radiohead'),\n",
+       " ('one and one is two', 'The Beatles'),\n",
+       " ('love these goon shows', 'The Beatles'),\n",
+       " ('nothing from nothing', 'The Rolling Stones'),\n",
+       " ('bullet proofi wish i was', 'Radiohead'),\n",
+       " ('play with fire', 'The Rolling Stones'),\n",
+       " ('dear wack', 'The Beatles'),\n",
+       " ('crushed pearl', 'The Rolling Stones'),\n",
+       " ('the sheik of araby', 'The Beatles'),\n",
+       " ('aint she sweet', 'The Beatles'),\n",
+       " ('highway child', 'The Rolling Stones'),\n",
+       " ('how can you be sure', 'Radiohead'),\n",
+       " ('burning bush', 'Radiohead'),\n",
+       " ('salt of the earth', 'The Rolling Stones'),\n",
+       " ('not guilty', 'The Beatles'),\n",
+       " ('soldier of love', 'The Beatles'),\n",
+       " ('i aint superstitious', 'The Rolling Stones'),\n",
+       " ('three cool cats', 'The Beatles'),\n",
+       " ('confessin the blues', 'The Rolling Stones'),\n",
+       " ('under the board walk', 'The Rolling Stones'),\n",
+       " ('hoochie coochie man', 'The Rolling Stones'),\n",
+       " ('thank you girl', 'The Beatles'),\n",
+       " ('follow me around', 'Radiohead'),\n",
+       " ('talk show host', 'Radiohead'),\n",
+       " ('you know my name look up the number', 'The Beatles'),\n",
+       " ('how i made my millions', 'Radiohead'),\n",
+       " ('watching rainbows', 'The Beatles'),\n",
+       " ('grown up wrong', 'The Rolling Stones'),\n",
+       " ('crinsk dee night', 'The Beatles'),\n",
+       " ('hello little girl', 'The Beatles'),\n",
+       " ('september in the rain', 'The Beatles'),\n",
+       " ('cool calm and collected', 'The Rolling Stones'),\n",
+       " ('komm gib mir deine hand', 'The Beatles'),\n",
+       " ('open pick', 'Radiohead'),\n",
+       " ('moonlight mile', 'The Rolling Stones'),\n",
+       " ('step inside love', 'The Beatles'),\n",
+       " ('dream baby', 'The Beatles'),\n",
+       " ('casino boogie', 'The Rolling Stones'),\n",
+       " ('child of nature', 'The Beatles'),\n",
+       " ('hitch hike', 'The Rolling Stones'),\n",
+       " ('mr b', 'Radiohead'),\n",
+       " ('im a king bee', 'The Rolling Stones'),\n",
+       " ('parachute woman', 'The Rolling Stones'),\n",
+       " ('goin home', 'The Rolling Stones'),\n",
+       " ('ruby baby', 'The Beatles'),\n",
+       " ('sinking ship', 'On A Friday'),\n",
+       " ('the fool on the hill demo', 'The Beatles'),\n",
+       " ('have a banana', 'The Beatles'),\n",
+       " ('yes it is', 'The Beatles'),\n",
+       " ('jingle bells', 'The Beatles'),\n",
+       " ('prodigal son', 'The Rolling Stones'),\n",
+       " ('untogether', 'Radiohead'),\n",
+       " ('let it loose', 'The Rolling Stones'),\n",
+       " ('everybody lies through their teeth', 'On A Friday'),\n",
+       " ('blood red wine', 'The Rolling Stones'),\n",
+       " ('the trickster', 'Radiohead'),\n",
+       " ('palo alto', 'Radiohead'),\n",
+       " ('worrywort', 'Radiohead'),\n",
+       " ('i just dont understand', 'The Beatles'),\n",
+       " ('what is it that you say', 'On A Friday'),\n",
+       " ('step inside love los paranoias', 'The Beatles'),\n",
+       " ('i think im going mad', 'The Rolling Stones'),\n",
+       " ('youve got a hold on me', 'The Beatles'),\n",
+       " ('some things just stick in your mind', 'The Rolling Stones'),\n",
+       " ('empty heart', 'The Rolling Stones'),\n",
+       " ('the beatles christmas record', 'The Beatles'),\n",
+       " ('packt like sardines in a crushd tin box', 'Radiohead'),\n",
+       " ('beautiful dreamer', 'The Beatles'),\n",
+       " ('i need you baby mona', 'The Rolling Stones'),\n",
+       " ('blue suede shoes', 'The Beatles'),\n",
+       " ('sour milk sea', 'The Beatles'),\n",
+       " ('sleepy city', 'The Rolling Stones'),\n",
+       " ('family', 'The Rolling Stones'),\n",
+       " ('lend me your comb', 'The Beatles'),\n",
+       " ('ventilator blues', 'The Rolling Stones'),\n",
+       " ('still a fool', 'The Rolling Stones'),\n",
+       " ('con le mie lacrime', 'The Rolling Stones'),\n",
+       " ('all together on the wireless machine', 'The Beatles'),\n",
+       " ('whats the new mary jane', 'The Beatles'),\n",
+       " ('dont look back', 'The Rolling Stones'),\n",
+       " ('stupid girl', 'The Rolling Stones'),\n",
+       " ('child of the moon', 'The Rolling Stones'),\n",
+       " ('you can make it if you try', 'The Rolling Stones'),\n",
+       " ('how do you do it', 'The Beatles'),\n",
+       " ('kansas city', 'The Beatles'),\n",
+       " ('hiheel sneakers', 'The Rolling Stones'),\n",
+       " ('summertime blues', 'The Rolling Stones'),\n",
+       " ('im going down', 'The Rolling Stones'),\n",
+       " ('pearly', 'Radiohead'),\n",
+       " ('so how come no one loves me', 'The Beatles'),\n",
+       " ('we love you', 'The Rolling Stones'),\n",
+       " ('she smiled sweetly', 'The Rolling Stones'),\n",
+       " ('little t a', 'The Rolling Stones'),\n",
+       " ('banana co', 'Radiohead'),\n",
+       " ('clarabella', 'The Beatles'),\n",
+       " ('wish you were here', 'Radiohead'),\n",
+       " ('sing a song for you', 'Radiohead'),\n",
+       " ('hallelujah i love her so', 'The Beatles'),\n",
+       " ('luxury', 'The Rolling Stones'),\n",
+       " ('the storm', 'The Rolling Stones'),\n",
+       " ('the daily mail', 'Radiohead'),\n",
+       " ('something with blue jay way transition', 'The Beatles'),\n",
+       " ('big ideas', 'Radiohead'),\n",
+       " ('heart of stone', 'The Rolling Stones'),\n",
+       " ('i just want to make love to you', 'The Rolling Stones'),\n",
+       " ('what to do', 'The Rolling Stones'),\n",
+       " ('road runner', 'The Rolling Stones'),\n",
+       " ('if i was a dancer dance part 2', 'The Rolling Stones'),\n",
+       " ('fancyman blues', 'The Rolling Stones'),\n",
+       " ('transatlantic drawl', 'Radiohead'),\n",
+       " ('the rocky road to dublin', 'The Chieftains'),\n",
+       " ('teddy boy', 'The Beatles'),\n",
+       " ('fingerprint file', 'The Rolling Stones'),\n",
+       " ('memphis tennessee', 'The Rolling Stones'),\n",
+       " ('cocksucker blues', 'The Rolling Stones'),\n",
+       " ('if you let me', 'The Rolling Stones'),\n",
+       " ('mercy mercy', 'The Rolling Stones'),\n",
+       " ('i got to find my baby', 'The Beatles'),\n",
+       " ('the singer not the song', 'The Rolling Stones'),\n",
+       " ('killer cars', 'Radiohead'),\n",
+       " ('slow down', 'The Beatles'),\n",
+       " ('my bonnie', 'Tony Sheridan'),\n",
+       " ('heavys pizza', 'Dallas Smart'),\n",
+       " ('drift away', 'The Rolling Stones'),\n",
+       " ('lift', 'Radiohead'),\n",
+       " ('sure to fall in love with you', 'The Beatles'),\n",
+       " ('molasses', 'Radiohead'),\n",
+       " ('tell me why ep', 'The Beatles'),\n",
+       " ('ill wear it proudly', 'Radiohead'),\n",
+       " ('melatonin', 'Radiohead'),\n",
+       " ('rain', 'The Beatles'),\n",
+       " ('india', 'The Beatles'),\n",
+       " ('being for the benefit of mr kitei want you shes so heavyhelter skelter',\n",
+       "  'The Beatles'),\n",
+       " ('one more shot', 'The Rolling Stones'),\n",
+       " ('stupid car', 'Radiohead'),\n",
+       " ('jiving sister fanny', 'The Rolling Stones'),\n",
+       " ('another beatles christmas record', 'The Beatles'),\n",
+       " ('were wastin time', 'The Rolling Stones'),\n",
+       " ('punchdrunk lovesick singalong', 'Radiohead'),\n",
+       " ('can i get a witness', 'The Rolling Stones'),\n",
+       " ('happy song', 'On A Friday'),\n",
+       " ('100 years ago', 'The Rolling Stones'),\n",
+       " ('riding on a bus', 'The Beatles'),\n",
+       " ('india rubber', 'Radiohead'),\n",
+       " ('on with the show', 'The Rolling Stones'),\n",
+       " ('hey negrita', 'The Rolling Stones'),\n",
+       " ('moonlight', 'The Beatles'),\n",
+       " ('polyethylene parts 1 2', 'Radiohead'),\n",
+       " ('sympathy for the devil fatboy slim remix', 'The Rolling Stones'),\n",
+       " ('sweet black angel', 'The Rolling Stones'),\n",
+       " ('if you love me baby', 'The Beatles'),\n",
+       " ('sweet little sixteen', 'The Rolling Stones'),\n",
+       " ('1822', 'The Beatles'),\n",
+       " ('everyone needs someone to hate', 'On A Friday'),\n",
+       " ('leave my kitten alone', 'The Beatles'),\n",
+       " ('citadel', 'The Rolling Stones'),\n",
+       " ('country honk', 'The Rolling Stones'),\n",
+       " ('hot stuff', 'The Rolling Stones'),\n",
+       " ('someone else', 'On A Friday'),\n",
+       " ('hide your love', 'The Rolling Stones'),\n",
+       " ('look what youve done', 'The Rolling Stones'),\n",
+       " ('dance little sister', 'The Rolling Stones'),\n",
+       " ('tell me youre coming back', 'The Rolling Stones'),\n",
+       " ('dancing in the light', 'The Rolling Stones'),\n",
+       " ('i dont know why', 'The Rolling Stones'),\n",
+       " ('mothers little helper', 'The Rolling Stones'),\n",
+       " ('jigsaw puzzle', 'The Rolling Stones'),\n",
+       " ('2000 man', 'The Rolling Stones'),\n",
+       " ('from us to you', 'The Beatles'),\n",
+       " ('here comes the sunthe inner light transition', 'The Beatles'),\n",
+       " ('down home girl', 'The Rolling Stones'),\n",
+       " ('you never wash up after yourself', 'Radiohead'),\n",
+       " ('commonwealth', 'The Beatles'),\n",
+       " ('bye bye johnny', 'The Rolling Stones'),\n",
+       " ('diddley daddy', 'The Rolling Stones'),\n",
+       " ('crackin up', 'The Rolling Stones'),\n",
+       " ('i just want to see his face', 'The Rolling Stones'),\n",
+       " ('set fire to that lot speech', 'The Beatles'),\n",
+       " ('the new generation', 'Radiohead'),\n",
+       " ('to be a brilliant light', 'On A Friday'),\n",
+       " ('a little rhyme', 'The Beatles'),\n",
+       " ('these are my twisted words', 'Radiohead'),\n",
+       " ('rain fall down william remix', 'The Rolling Stones'),\n",
+       " ('across the universe wildlife version', 'The Beatles'),\n",
+       " ('i cant help it', 'The Rolling Stones'),\n",
+       " ('the happy rishikesh song', 'The Beatles'),\n",
+       " ('blue moon of kentucky', 'The Beatles'),\n",
+       " ('dollars and cents', 'Radiohead'),\n",
+       " ('it should be you', 'The Rolling Stones'),\n",
+       " ('goodbye girl', 'The Rolling Stones'),\n",
+       " ('corinna', 'The Rolling Stones'),\n",
+       " ('million dollar question', 'Radiohead'),\n",
+       " ('bitch', 'The Rolling Stones'),\n",
+       " ('she said yeah', 'The Rolling Stones'),\n",
+       " ('maquiladora', 'Radiohead'),\n",
+       " ('sway', 'The Rolling Stones'),\n",
+       " ('oh baby we got a good thing goin', 'The Rolling Stones'),\n",
+       " ('wake up in the morning', 'The Rolling Stones'),\n",
+       " ('who am i', 'The Rolling Stones'),\n",
+       " ('memory motel', 'The Rolling Stones'),\n",
+       " ('my obsession', 'The Rolling Stones'),\n",
+       " ('sure to fall', 'The Beatles'),\n",
+       " ('im talking about you', 'The Beatles'),\n",
+       " ('faithless the wonderboy', 'Radiohead'),\n",
+       " ('i got the blues', 'The Rolling Stones'),\n",
+       " ('carol', 'The Beatles'),\n",
+       " ('sgt peppers lonely hearts club band band documentary multimedia',\n",
+       "  'The Beatles'),\n",
+       " ('the under assistant west coast promotion man', 'The Rolling Stones'),\n",
+       " ('have you seen your mother baby standing in the shadow',\n",
+       "  'The Rolling Stones'),\n",
+       " ('suzy parker', 'The Beatles'),\n",
+       " ('jerusalem', 'On A Friday'),\n",
+       " ('plundered my soul', 'The Rolling Stones'),\n",
+       " ('mailman bring me no more blues', 'The Beatles'),\n",
+       " ('memo from turner', 'The Rolling Stones'),\n",
+       " ('it hurts me too', 'The Rolling Stones'),\n",
+       " ('stranger in my arms', 'The Beatles'),\n",
+       " ('young blood', 'The Beatles'),\n",
+       " ('soul survivor', 'The Rolling Stones'),\n",
+       " ('torn and frayed', 'The Rolling Stones'),\n",
+       " ('sittin on a fence', 'The Rolling Stones'),\n",
+       " ('doncha bother me', 'The Rolling Stones'),\n",
+       " ('fasttrack', 'Radiohead'),\n",
+       " ('ride on baby', 'The Rolling Stones'),\n",
+       " ('that girl belongs to yesterday', 'The Rolling Stones'),\n",
+       " ('james bond theme', 'The Beatles'),\n",
+       " ('love', 'The Beatles'),\n",
+       " ('hear me lord harrison', 'The Beatles'),\n",
+       " ('i forgot to remember to forget', 'The Beatles'),\n",
+       " ('a reminder', 'Radiohead'),\n",
+       " ('set fire to that lot', 'The Beatles'),\n",
+       " ('ceremony', 'Radiohead'),\n",
+       " ('harlem shuffle ny mix', 'The Rolling Stones'),\n",
+       " ('if you need me', 'The Rolling Stones'),\n",
+       " ('lozenge of love', 'Radiohead'),\n",
+       " ('shake rattle and roll', 'The Beatles'),\n",
+       " ('to know her is to love her', 'The Beatles'),\n",
+       " ('pedro the fisherman', 'The Beatles'),\n",
+       " ('harry patch in memory of', 'Radiohead'),\n",
+       " ('nothing touches me', 'Radiohead'),\n",
+       " ('dont lie to me', 'The Rolling Stones'),\n",
+       " ('christmas time is here again', 'The Beatles'),\n",
+       " ('cook cook blues', 'The Rolling Stones'),\n",
+       " ('losing my touch', 'The Rolling Stones'),\n",
+       " ('fortune teller', 'The Rolling Stones'),\n",
+       " ('have a banana speech', 'The Beatles'),\n",
+       " ('coming down again', 'The Rolling Stones'),\n",
+       " ('ill wind', 'Radiohead'),\n",
+       " ('lull', 'Radiohead'),\n",
+       " ('you gotta move', 'The Rolling Stones'),\n",
+       " ('the inner light', 'The Beatles'),\n",
+       " ('hand of fate', 'The Rolling Stones'),\n",
+       " ('staircase', 'Radiohead'),\n",
+       " ('dont stop', 'The Rolling Stones'),\n",
+       " ('get back aka no pakistanis', 'The Beatles'),\n",
+       " ('lucille', 'The Beatles'),\n",
+       " ('that means a lot', 'The Beatles'),\n",
+       " ('gomper', 'The Rolling Stones'),\n",
+       " ('tell me', 'The Rolling Stones'),\n",
+       " ('moonlight bay', 'The Beatles'),\n",
+       " ('stand by me', 'The Beatles'),\n",
+       " ('manowar', 'Radiohead'),\n",
+       " ('bad to me', 'The Beatles'),\n",
+       " ('miss you dr dre remix 2002', 'The Rolling Stones'),\n",
+       " ('too much monkey business', 'The Beatles'),\n",
+       " ('poison ivy', 'The Rolling Stones'),\n",
+       " ('free as a bird', 'The Beatles'),\n",
+       " ('cuttooth', 'Radiohead'),\n",
+       " ('come and get it', 'The Beatles'),\n",
+       " ('turd on the run', 'The Rolling Stones'),\n",
+       " ('i cant be satisfied', 'The Rolling Stones'),\n",
+       " ('time waits for no one', 'The Rolling Stones'),\n",
+       " ('if you really want to be my friend', 'The Rolling Stones'),\n",
+       " ('dandelion', 'The Rolling Stones'),\n",
+       " ('swanee river', 'The Beatles'),\n",
+       " ('tell me baby how many times', 'The Rolling Stones'),\n",
+       " ('you know my name', 'The Beatles'),\n",
+       " ('bright lights big city', 'The Rolling Stones'),\n",
+       " ('beautiful delilah', 'The Rolling Stones'),\n",
+       " ('when the saints go marchin in', 'The Beatles'),\n",
+       " ('nobody does it better', 'Radiohead'),\n",
+       " ('like dreamers do', 'The Beatles'),\n",
+       " ('searchin', 'The Beatles'),\n",
+       " ('thats alright mama', 'The Beatles'),\n",
+       " ('crazy mama', 'The Rolling Stones'),\n",
+       " ('good time women', 'The Rolling Stones'),\n",
+       " ('keys to your love', 'The Rolling Stones'),\n",
+       " ('whos driving your plane', 'The Rolling Stones'),\n",
+       " ('drive my carthe wordwhat youre doing', 'The Beatles'),\n",
+       " ('out of time', 'The Rolling Stones'),\n",
+       " ('cops and robbers', 'The Rolling Stones'),\n",
+       " ('pass the wine sophia loren', 'The Rolling Stones'),\n",
+       " ('linda lu', 'The Rolling Stones'),\n",
+       " ('from fluff to you', 'The Beatles'),\n",
+       " ('surprise surprise', 'The Rolling Stones'),\n",
+       " ('pantomime everywhere its christmas', 'The Beatles'),\n",
+       " ('coke babies', 'Radiohead'),\n",
+       " ('fog', 'Radiohead'),\n",
+       " ('sgt peppers lonely hearts club band reprise', 'The Beatles'),\n",
+       " ('if youve got trouble', 'The Beatles'),\n",
+       " ('a shot of rhythm and blues', 'The Beatles'),\n",
+       " ('looking tired', 'The Rolling Stones'),\n",
+       " ('the amazing sounds of orgy', 'Radiohead'),\n",
+       " ('sing this all together see what happens', 'The Rolling Stones')]"
+      ]
+     },
+     "execution_count": 37,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "Manually fix a couple of errors."
+    "[g for g in genius_only\n",
+    " if 'take' not in g[0]\n",
+    " if 'medley' not in g[0]\n",
+    " if 'intro' not in g[0]\n",
+    " if 'live' not in g[0]\n",
+    "]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 52,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "<pymongo.results.UpdateResult at 0x7fa6226370d8>"
+       "[('revolution', 'The Beatles'), ('revolution i', 'The Beatles')]"
       ]
      },
-     "execution_count": 52,
+     "execution_count": 38,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "genius_tracks.update_many({'ctitle': 'revolution i'}, \n",
-    "                          {'$set': {'ctitle': 'revolution 1'}})\n",
-    "genius_tracks.update_many({'ctitle': 'when im sixtyfour'}, \n",
-    "                          {'$set': {'ctitle': 'when im sixty four'}})\n",
-    "genius_tracks.update_many({'ctitle': 'packt like sardines in a crushd tin box'}, \n",
-    "                          {'$set': {'ctitle': 'packt like sardines in a crushed tin box'}})\n",
-    "genius_tracks.update_many({'ctitle': 'a punchup at a wedding'}, \n",
-    "                          {'$set': {'ctitle': 'a punch up at a wedding'}})\n",
-    "genius_tracks.update_many({'ctitle': 'dollars cents'}, \n",
-    "                          {'$set': {'ctitle': 'dollars and cents'}})\n",
-    "genius_tracks.update_many({'ctitle': 'bullet proofi wish i was'}, \n",
-    "                          {'$set': {'ctitle': 'bullet proof i wish i was'}})"
+    "[t for t in genius_only if 'revolution' in t[0]]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 39,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "(306, 293, 41)"
+       "[('revolution 1', 'The Beatles')]"
       ]
      },
-     "execution_count": 79,
+     "execution_count": 39,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "in_both = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if tracks.find({'ctitle': g['ctitle']}).count())\n",
-    "genius_only = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if not tracks.find({'ctitle': g['ctitle']}).count())\n",
-    "spotify_only = set(s['ctitle'] for s in tracks.find({}, ['ctitle']) if not genius_tracks.find({'ctitle': s['ctitle']}).count())\n",
-    "len(in_both), len(genius_only), len(spotify_only)"
+    "[t for t in spotify_only if 'revolution' in t[0]]"
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": 40,
    "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "([], [('jumping jack flash', 'The Rolling Stones')])"
+      ]
+     },
+     "execution_count": 40,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "### Copy the lyrics over<a name=\"copylyrics\"></a>\n",
-    "Now can can connect the tracks, let's copy across the lyrics from the Genius collection into the Spotify collection. We'll calculate the lyrical density at the same time.\n",
-    "\n",
-    "* [Top](#top)"
+    "([t for t in in_both if 'jack flash' in t], [t for t in spotify_only if 'jack flash' in t[0]])"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 80,
+   "execution_count": 42,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "i might be wrong live [('i might be wrong live', 'Radiohead')] []\n",
+      "losing my touch [] [('losing my touch', 'The Rolling Stones')]\n",
+      "burning bush [] [('burning bush', 'Radiohead')]\n",
+      "just a rumour [] [('just a rumour', 'The Beatles')]\n",
+      "eight days a week [('eight days a week', 'The Beatles'), ('eight days a week', 'The Beatles')] [('eight days a week', 'The Beatles')]\n",
+      "little by little caribou rmx [('little by little caribou rmx', 'Radiohead')] []\n",
+      "yesterdays papers [] [('yesterdays papers', 'The Rolling Stones')]\n",
+      "con le mie lacrime [] [('con le mie lacrime', 'The Rolling Stones')]\n",
+      "come on [] [('come on', 'The Rolling Stones')]\n",
+      "fortune teller [] [('fortune teller', 'The Rolling Stones')]\n",
+      "cinnamon girl [] [('cinnamon girl', 'Radiohead')]\n",
+      "lewis mistreated [] [('lewis mistreated', 'Radiohead')]\n",
+      "bright lights big city [] [('bright lights big city', 'The Rolling Stones')]\n",
+      "johnny b goode [] [('johnny b goode', 'The Beatles')]\n",
+      "give it up [] [('give it up', 'On A Friday')]\n",
+      "crinsk dee night [] [('crinsk dee night', 'The Beatles')]\n",
+      "hoochie coochie man [] [('hoochie coochie man', 'The Rolling Stones')]\n",
+      "union city blue [] [('union city blue', 'Radiohead')]\n",
+      "yesterday [('yesterday', 'The Beatles'), ('yesterday', 'The Beatles')] [('yesterday', 'Yusdrew'), ('yesterday', 'The Beatles')]\n",
+      "had it with you [('had it with you', 'The Rolling Stones'), ('had it with you', 'The Rolling Stones')] [('had it with you', 'The Rolling Stones')]\n",
+      "gnik nus [] [('gnik nus', 'The Beatles')]\n",
+      "bullet proof i wish i was [('bullet proof i wish i was', 'Radiohead')] []\n",
+      "child of nature [] [('child of nature', 'The Beatles')]\n",
+      "dont stop [] [('dont stop', 'The Rolling Stones')]\n",
+      "kansas city heyheyheyhey [('kansas city heyheyheyhey', 'The Beatles')] []\n",
+      "dance [] [('dance', 'The Rolling Stones')]\n",
+      "besame mucho [] [('besame mucho', 'The Beatles')]\n",
+      "you got the silver [('you got the silver', 'The Rolling Stones'), ('you got the silver', 'The Rolling Stones')] [('you got the silver', 'The Rolling Stones')]\n",
+      "march of the meanies [('march of the meanies', 'George Martin')] []\n",
+      "stupid girl [] [('stupid girl', 'The Rolling Stones')]\n",
+      "child of the moon [] [('child of the moon', 'The Rolling Stones')]\n",
+      "stoned [] [('stoned', 'The Rolling Stones')]\n",
+      "good time women [] [('good time women', 'The Rolling Stones')]\n",
+      "you can make it if you try [] [('you can make it if you try', 'The Rolling Stones')]\n",
+      "christmas time is here again [] [('christmas time is here again', 'The Beatles')]\n",
+      "everyone needs someone to hate [] [('everyone needs someone to hate', 'On A Friday')]\n",
+      "its not easy [] [('its not easy', 'The Rolling Stones')]\n",
+      "worried about you [('worried about you', 'The Rolling Stones'), ('worried about you', 'Bob Clearmountain')] [('worried about you', 'The Rolling Stones')]\n",
+      "i promise [] [('i promise', 'Radiohead')]\n",
+      "charlie watts introduction of marianne faithfull [] [('charlie watts introduction of marianne faithfull', 'The Rolling Stones')]\n",
+      "out of time [] [('out of time', 'The Rolling Stones'), ('out of time', 'The Rolling Stones')]\n",
+      "play with fire [] [('play with fire', 'The Rolling Stones')]\n",
+      "the storm [] [('the storm', 'The Rolling Stones')]\n",
+      "hiheel sneakers [] [('hiheel sneakers', 'The Rolling Stones')]\n",
+      "ill wind [] [('ill wind', 'Radiohead')]\n",
+      "walking through the sleepy city [] [('walking through the sleepy city', 'The Rolling Stones')]\n",
+      "maquiladora [] [('maquiladora', 'Radiohead')]\n",
+      "when the whip comes down [('when the whip comes down', 'The Rolling Stones'), ('when the whip comes down', 'The Rolling Stones'), ('when the whip comes down', 'The Rolling Stones')] [('when the whip comes down', 'The Rolling Stones')]\n",
+      "worrywort [] [('worrywort', 'Radiohead')]\n",
+      "a moon shaped pool tracklist album cover [] [('a moon shaped pool tracklist album cover', 'Radiohead')]\n",
+      "ill be on my way [] [('ill be on my way', 'The Beatles')]\n",
+      "sure to fall in love with you [] [('sure to fall in love with you', 'The Beatles')]\n",
+      "i wanna be your man [('i wanna be your man', 'The Beatles')] [('i wanna be your man', 'The Beatles'), ('i wanna be your man', 'The Rolling Stones')]\n",
+      "glad all over [] [('glad all over', 'The Beatles')]\n",
+      "goin home [] [('goin home', 'The Rolling Stones')]\n",
+      "i am waiting [] [('i am waiting', 'The Rolling Stones')]\n",
+      "high and dry [('high and dry', 'Radiohead')] [('high and dry', 'Radiohead'), ('high and dry', 'The Rolling Stones')]\n",
+      "highway child [] [('highway child', 'The Rolling Stones')]\n",
+      "sgt peppers lonely hearts club band band documentary multimedia [] [('sgt peppers lonely hearts club band band documentary multimedia', 'The Beatles')]\n",
+      "gangsters maul [] [('gangsters maul', 'The Rolling Stones')]\n",
+      "ooh my arms speech [] [('ooh my arms speech', 'The Beatles')]\n",
+      "from us to you [] [('from us to you', 'The Beatles')]\n",
+      "why [] [('why', 'The Beatles')]\n",
+      "yellow submarine [('yellow submarine', 'The Beatles'), ('yellow submarine', 'The Beatles'), ('yellow submarine', 'The Beatles')] [('yellow submarine', 'The Beatles')]\n",
+      "im gonna drive [] [('im gonna drive', 'The Rolling Stones')]\n",
+      "one hit to the body [('one hit to the body', 'The Rolling Stones'), ('one hit to the body', 'The Rolling Stones')] [('one hit to the body', 'The Rolling Stones')]\n",
+      "nobodys child [] [('nobodys child', 'The Beatles')]\n",
+      "sweet little sixteen [] [('sweet little sixteen', 'The Beatles'), ('sweet little sixteen', 'The Rolling Stones')]\n",
+      "you better move on [] [('you better move on', 'The Rolling Stones')]\n",
+      "paranoid android [('paranoid android', 'Radiohead')] [('paranoid android', 'Sia'), ('paranoid android', 'Radiohead')]\n",
+      "keep your hands off my baby [] [('keep your hands off my baby', 'The Beatles')]\n",
+      "eleanor rigbyjulia transition [] [('eleanor rigbyjulia transition', 'The Beatles')]\n",
+      "dear wack [] [('dear wack', 'The Beatles')]\n",
+      "fingerprint file [] [('fingerprint file', 'The Rolling Stones')]\n",
+      "everything in its right place live in france [('everything in its right place live in france', 'Radiohead')] []\n",
+      "mailman bring me no more blues [] [('mailman bring me no more blues', 'The Beatles')]\n",
+      "till the next goodbye [] [('till the next goodbye', 'The Rolling Stones')]\n",
+      "another beatles christmas record [] [('another beatles christmas record', 'The Beatles')]\n",
+      "harlem shuffle [('harlem shuffle', 'The Rolling Stones'), ('harlem shuffle', 'The Rolling Stones')] [('harlem shuffle', 'The Rolling Stones')]\n",
+      "that means a lot [] [('that means a lot', 'The Beatles')]\n",
+      "tell me baby how many times [] [('tell me baby how many times', 'The Rolling Stones')]\n",
+      "like a rolling stone [('like a rolling stone', 'The Rolling Stones'), ('like a rolling stone', 'The Rolling Stones')] [('like a rolling stone', 'The Rolling Stones')]\n",
+      "you know what to do [] [('you know what to do', 'The Beatles')]\n",
+      "too rude [('too rude', 'The Rolling Stones'), ('too rude', 'The Rolling Stones')] [('too rude', 'The Rolling Stones')]\n",
+      "drive my carthe wordwhat youre doing [] [('drive my carthe wordwhat youre doing', 'The Beatles')]\n",
+      "everybody lies through their teeth [] [('everybody lies through their teeth', 'On A Friday')]\n",
+      "ladytron [] [('ladytron', 'Radiohead')]\n",
+      "open pick [] [('open pick', 'Radiohead')]\n",
+      "i want none of this [] [('i want none of this', 'Radiohead')]\n",
+      "whos been sleeping here [] [('whos been sleeping here', 'The Rolling Stones')]\n",
+      "being for the benefit of mr kitei want you shes so heavyhelter skelter [] [('being for the benefit of mr kitei want you shes so heavyhelter skelter', 'The Beatles')]\n",
+      "james bond theme [] [('james bond theme', 'The Beatles')]\n",
+      "what to do [] [('what to do', 'The Rolling Stones')]\n",
+      "ruby baby [] [('ruby baby', 'The Beatles')]\n",
+      "still a fool [] [('still a fool', 'The Rolling Stones')]\n",
+      "pedro the fisherman [] [('pedro the fisherman', 'The Beatles')]\n",
+      "watching rainbows [] [('watching rainbows', 'The Beatles')]\n",
+      "if you love me baby [] [('if you love me baby', 'The Beatles')]\n",
+      "if you cant rock me [] [('if you cant rock me', 'The Rolling Stones')]\n",
+      "bitches talkin [] [('bitches talkin', 'Frank Ocean')]\n",
+      "fog [] [('fog', 'Radiohead')]\n",
+      "strawberry fields forever take 7 edit piece [] [('strawberry fields forever take 7 edit piece', 'The Beatles')]\n",
+      "fanny mae [] [('fanny mae', 'The Rolling Stones')]\n",
+      "band introductions [('band introductions', 'The Rolling Stones')] []\n",
+      "nothing touches me [] [('nothing touches me', 'Radiohead')]\n",
+      "the national anthem live in france [('the national anthem live in france', 'Radiohead')] []\n",
+      "bloom harmonic 313 rmx [('bloom harmonic 313 rmx', 'Radiohead')] []\n",
+      "hey negrita [] [('hey negrita', 'The Rolling Stones')]\n",
+      "give up the ghost thriller houseghost remix [('give up the ghost thriller houseghost remix', 'Radiohead')] []\n",
+      "if you need me [] [('if you need me', 'The Rolling Stones')]\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "the daily mail [] [('the daily mail', 'Radiohead')]\n",
+      "try a little harder [] [('try a little harder', 'The Rolling Stones')]\n",
+      "bishops robes [] [('bishops robes', 'Radiohead')]\n",
+      "casino boogie [] [('casino boogie', 'The Rolling Stones')]\n",
+      "fool to cry [] [('fool to cry', 'The Rolling Stones')]\n",
+      "outro [('outro', 'Jimi Hendrix')] []\n",
+      "i will [('i will', 'The Beatles'), ('i will', 'Radiohead')] [('i will', 'Radiohead'), ('i will', 'The Beatles')]\n",
+      "the fool on the hill demo [] [('the fool on the hill demo', 'The Beatles')]\n",
+      "yes it is [] [('yes it is', 'The Beatles')]\n",
+      "the butcher [] [('the butcher', 'Radiohead')]\n",
+      "blood red wine [] [('blood red wine', 'The Rolling Stones')]\n",
+      "youll be mine [] [('youll be mine', 'The Beatles')]\n",
+      "luxury [] [('luxury', 'The Rolling Stones')]\n",
+      "tell me youre coming back [] [('tell me youre coming back', 'The Rolling Stones')]\n",
+      "paint it black [('paint it black', 'The Rolling Stones'), ('paint it black', 'The Rolling Stones'), ('paint it black', 'The Rolling Stones'), ('paint it black', 'The Rolling Stones')] [('paint it black', 'The Rolling Stones')]\n",
+      "start me up [('start me up', 'The Rolling Stones'), ('start me up', 'The Rolling Stones'), ('start me up', 'The Rolling Stones'), ('start me up', 'The Rolling Stones'), ('start me up', 'The Rolling Stones'), ('start me up', 'The Rolling Stones')] [('start me up', 'The Rolling Stones')]\n",
+      "dead flowers [('dead flowers', 'The Rolling Stones'), ('dead flowers', 'The Rolling Stones')] [('dead flowers', 'The Rolling Stones')]\n",
+      "stuck out all alone [] [('stuck out all alone', 'The Rolling Stones')]\n",
+      "love me do [('love me do', 'The Beatles'), ('love me do', 'The Beatles')] [('love me do', 'The Beatles'), ('love me do', 'The Beatles')]\n",
+      "can i get a witness [] [('can i get a witness', 'The Rolling Stones')]\n",
+      "have you seen your mother baby standing in the shadow [] [('have you seen your mother baby standing in the shadow', 'The Rolling Stones')]\n",
+      "cherry oh baby [] [('cherry oh baby', 'The Rolling Stones')]\n",
+      "hear me lord harrison [] [('hear me lord harrison', 'The Beatles')]\n",
+      "crushed pearl [] [('crushed pearl', 'The Rolling Stones')]\n",
+      "criss cross man [] [('criss cross man', 'The Rolling Stones')]\n",
+      "citadel [] [('citadel', 'The Rolling Stones')]\n",
+      "shattered [('shattered', 'The Rolling Stones'), ('shattered', 'The Rolling Stones'), ('shattered', 'The Rolling Stones'), ('shattered', 'The Rolling Stones')] [('shattered', 'The Rolling Stones')]\n",
+      "wake up in the morning [] [('wake up in the morning', 'The Rolling Stones')]\n",
+      "lets dance [] [('lets dance', 'The Beatles')]\n",
+      "surprise surprise [] [('surprise surprise', 'The Rolling Stones')]\n",
+      "have a banana speech [] [('have a banana speech', 'The Beatles')]\n",
+      "ticket to ride [('ticket to ride', 'The Beatles'), ('ticket to ride', 'The Beatles'), ('ticket to ride', 'The Beatles')] [('ticket to ride', 'The Beatles')]\n",
+      "all my loving [('all my loving', 'The Beatles'), ('all my loving', 'The Beatles')] [('all my loving', 'The Beatles')]\n",
+      "goodbye girl [] [('goodbye girl', 'The Rolling Stones')]\n",
+      "turd on the run [] [('turd on the run', 'The Rolling Stones')]\n",
+      "codex illum sphere [('codex illum sphere', 'Radiohead')] []\n",
+      "the amazing sounds of orgy [] [('the amazing sounds of orgy', 'Radiohead')]\n",
+      "a shot of rhythm and blues [] [('a shot of rhythm and blues', 'The Beatles')]\n",
+      "blue turns to grey [] [('blue turns to grey', 'The Rolling Stones')]\n",
+      "faraway eyes [('faraway eyes', 'The Rolling Stones'), ('faraway eyes', 'The Rolling Stones')] []\n",
+      "dandelion [] [('dandelion', 'The Rolling Stones')]\n",
+      "down in the bottom [] [('down in the bottom', 'The Rolling Stones')]\n",
+      "transatlantic drawl [] [('transatlantic drawl', 'Radiohead')]\n",
+      "dollars cents [('dollars cents', 'Radiohead')] []\n",
+      "i got to find my baby [] [('i got to find my baby', 'The Beatles')]\n",
+      "mantua [] [('mantua', 'Radiohead')]\n",
+      "being for the benefit of mr kite take 7 [] [('being for the benefit of mr kite take 7', 'The Beatles')]\n",
+      "get back [('get back', 'Billy Preston'), ('get back', 'The Beatles')] [('get back', 'The Beatles')]\n",
+      "all things must pass [] [('all things must pass', 'The Beatles')]\n",
+      "time is on my side [('time is on my side', 'The Rolling Stones'), ('time is on my side', 'The Rolling Stones')] [('time is on my side', 'The Rolling Stones')]\n",
+      "slow down [] [('slow down', 'The Beatles')]\n",
+      "crackin up [] [('crackin up', 'The Rolling Stones')]\n",
+      "i just want to see his face [] [('i just want to see his face', 'The Rolling Stones')]\n",
+      "down home girl [] [('down home girl', 'The Rolling Stones')]\n",
+      "dont ever change [] [('dont ever change', 'The Beatles')]\n",
+      "all together on the wireless machine [] [('all together on the wireless machine', 'The Beatles')]\n",
+      "lift [] [('lift', 'Radiohead')]\n",
+      "glass onion love remix [] [('glass onion love remix', 'The Beatles')]\n",
+      "martin scorsese intro [('martin scorsese intro', 'The Rolling Stones')] []\n",
+      "good times bad times [] [('good times bad times', 'The Rolling Stones')]\n",
+      "you cant always get what you want [('you cant always get what you want', 'The Rolling Stones'), ('you cant always get what you want', 'The Rolling Stones'), ('you cant always get what you want', 'The Rolling Stones')] [('you cant always get what you want', 'The Rolling Stones')]\n",
+      "2 2 5 live at earls court [('2 2 5 live at earls court', 'Radiohead')] []\n",
+      "separator four tet rmx [('separator four tet rmx', 'Radiohead')] []\n",
+      "all down the line [('all down the line', 'The Rolling Stones'), ('all down the line', 'The Rolling Stones')] [('all down the line', 'The Rolling Stones')]\n",
+      "baby whats wrong [] [('baby whats wrong', 'The Rolling Stones')]\n",
+      "beautiful dreamer [] [('beautiful dreamer', 'The Beatles')]\n",
+      "reelin and rockin [] [('reelin and rockin', 'The Rolling Stones')]\n",
+      "looking tired [] [('looking tired', 'The Rolling Stones')]\n",
+      "matchbox [] [('matchbox', 'The Beatles')]\n",
+      "september in the rain [] [('september in the rain', 'The Beatles')]\n",
+      "hound dog [] [('hound dog', 'The Rolling Stones')]\n",
+      "street fighting man [('street fighting man', 'The Rolling Stones'), ('street fighting man', 'The Rolling Stones'), ('street fighting man', 'The Rolling Stones')] [('street fighting man', 'The Rolling Stones')]\n",
+      "downtown suzie [] [('downtown suzie', 'The Rolling Stones')]\n",
+      "lend me your comb [] [('lend me your comb', 'The Beatles')]\n",
+      "my bonnie english intro [] [('my bonnie english intro', 'The Beatles')]\n",
+      "sing a song for you [] [('sing a song for you', 'Radiohead')]\n",
+      "staircase [] [('staircase', 'Radiohead')]\n",
+      "across the universe wildlife version [] [('across the universe wildlife version', 'The Beatles')]\n",
+      "little ta [('little ta', 'The Rolling Stones'), ('little ta', 'The Rolling Stones')] []\n",
+      "in another land [] [('in another land', 'The Rolling Stones')]\n",
+      "the beatles 1968 christmas record [] [('the beatles 1968 christmas record', 'The Beatles')]\n",
+      "lady jane [] [('lady jane', 'The Rolling Stones')]\n",
+      "stray cat blues [] [('stray cat blues', 'The Rolling Stones')]\n",
+      "bad to me [] [('bad to me', 'The Beatles')]\n",
+      "soul survivor [] [('soul survivor', 'The Rolling Stones')]\n",
+      "keith richards introduction of the who [] [('keith richards introduction of the who', 'The Rolling Stones')]\n",
+      "bloom blawan rmx [('bloom blawan rmx', 'Radiohead')] []\n",
+      "love [] [('love', 'The Beatles')]\n",
+      "dont let me down [] [('dont let me down', 'The Beatles')]\n",
+      "melatonin [] [('melatonin', 'Radiohead')]\n",
+      "the harder they come [] [('the harder they come', 'The Rolling Stones')]\n",
+      "someone else [] [('someone else', 'On A Friday')]\n",
+      "pearly [] [('pearly', 'Radiohead')]\n",
+      "no expectations [] [('no expectations', 'The Rolling Stones')]\n",
+      "dont look back [] [('dont look back', 'The Rolling Stones')]\n",
+      "lull [] [('lull', 'Radiohead')]\n",
+      "million dollar question [] [('million dollar question', 'Radiohead')]\n",
+      "gomper [] [('gomper', 'The Rolling Stones')]\n",
+      "a picture of you [] [('a picture of you', 'The Beatles')]\n",
+      "sympathy for the devil fatboy slim remix [] [('sympathy for the devil fatboy slim remix', 'The Rolling Stones')]\n",
+      "revolution [] [('revolution', 'The Beatles')]\n",
+      "what a shame [] [('what a shame', 'The Rolling Stones')]\n",
+      "coming down again [] [('coming down again', 'The Rolling Stones')]\n",
+      "fasttrack [] [('fasttrack', 'Radiohead')]\n",
+      "cuttooth [] [('cuttooth', 'Radiohead')]\n",
+      "morning bell live in oxford [('morning bell live in oxford', 'Radiohead')] []\n",
+      "heavys pizza [] [('heavys pizza', 'Dallas Smart')]\n",
+      "i forgot to remember to forget [] [('i forgot to remember to forget', 'The Beatles')]\n",
+      "set fire to that lot [] [('set fire to that lot', 'The Beatles')]\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "good times [] [('good times', 'The Rolling Stones')]\n",
+      "meeting in the aisle [] [('meeting in the aisle', 'Radiohead')]\n",
+      "lozenge of love [] [('lozenge of love', 'Radiohead')]\n",
+      "hitch hike [] [('hitch hike', 'The Rolling Stones')]\n",
+      "to be a brilliant light [] [('to be a brilliant light', 'On A Friday')]\n",
+      "separator anstam rmx [('separator anstam rmx', 'Radiohead')] []\n",
+      "doo doo doo doo doo heartbreaker [] [('doo doo doo doo doo heartbreaker', 'The Rolling Stones')]\n",
+      "beast of burden [('beast of burden', 'The Rolling Stones'), ('beast of burden', 'The Rolling Stones'), ('beast of burden', 'The Rolling Stones')] [('beast of burden', 'The Rolling Stones')]\n",
+      "medley kansas cityhey hey hey hey [] [('medley kansas cityhey hey hey hey', 'The Beatles')]\n",
+      "bloom objekt rmx [('bloom objekt rmx', 'Radiohead')] []\n",
+      "intro take the a train [('intro take the a train', 'Duke Ellington')] []\n",
+      "money thats what i want [('money thats what i want', 'The Beatles')] [('money thats what i want', 'The Beatles'), ('money thats what i want', 'The Beatles')]\n",
+      "how do you do it [] [('how do you do it', 'The Beatles')]\n",
+      "soldier of love [] [('soldier of love', 'The Beatles')]\n",
+      "wish i never met you [] [('wish i never met you', 'The Rolling Stones')]\n",
+      "remyxomatosis cristian vogel rmx [('remyxomatosis cristian vogel rmx', 'Radiohead')] []\n",
+      "bebopalula [] [('bebopalula', 'The Beatles')]\n",
+      "before they make me run [('before they make me run', 'The Rolling Stones'), ('before they make me run', 'The Rolling Stones'), ('before they make me run', 'The Rolling Stones')] [('before they make me run', 'The Rolling Stones')]\n",
+      "twist and shout [('twist and shout', 'The Beatles'), ('twist and shout', 'The Beatles')] [('twist and shout', 'The Beatles'), ('twist and shout', 'The Beatles'), ('twist and shout', 'The Beatles')]\n",
+      "jazz piano song [] [('jazz piano song', 'The Beatles')]\n",
+      "spectre [] [('spectre', 'Radiohead')]\n",
+      "within you without youtomorrow never knows [] [('within you without youtomorrow never knows', 'The Beatles')]\n",
+      "im free [('im free', 'The Rolling Stones'), ('im free', 'The Rolling Stones')] [('im free', 'The Rolling Stones')]\n",
+      "things we said today [('things we said today', 'The Beatles'), ('things we said today', 'The Beatles')] [('things we said today', 'The Beatles')]\n",
+      "nobody does it better [] [('nobody does it better', 'Radiohead')]\n",
+      "country honk [] [('country honk', 'The Rolling Stones')]\n",
+      "suzy parker [] [('suzy parker', 'The Beatles')]\n",
+      "hide your love [] [('hide your love', 'The Rolling Stones')]\n",
+      "charlies intro to little red rooster [('charlies intro to little red rooster', 'The Rolling Stones')] []\n",
+      "honky tonk women [('honky tonk women', 'The Rolling Stones'), ('honky tonk women', 'Sheryl Crow'), ('honky tonk women', 'The Rolling Stones')] [('honky tonk women', 'The Rolling Stones')]\n",
+      "here comes the sunthe inner light transition [] [('here comes the sunthe inner light transition', 'The Beatles')]\n",
+      "dear doctor [] [('dear doctor', 'The Rolling Stones')]\n",
+      "little t a [] [('little t a', 'The Rolling Stones')]\n",
+      "title 5 [] [('title 5', 'The Rolling Stones')]\n",
+      "saints when the saints go marching in [] [('saints when the saints go marching in', 'The Beatles')]\n",
+      "happy song [] [('happy song', 'On A Friday')]\n",
+      "neighbours [('neighbours', 'The Rolling Stones'), ('neighbours', 'Bob Clearmountain')] [('neighbours', 'The Rolling Stones')]\n",
+      "wonderwall [] [('wonderwall', 'Radiohead')]\n",
+      "i got the blues [] [('i got the blues', 'The Rolling Stones')]\n",
+      "the new generation [] [('the new generation', 'Radiohead')]\n",
+      "sleep tonight [('sleep tonight', 'The Rolling Stones'), ('sleep tonight', 'The Rolling Stones')] [('sleep tonight', 'The Rolling Stones')]\n",
+      "like spinning plates live [('like spinning plates live', 'Radiohead')] []\n",
+      "what is it that you say [] [('what is it that you say', 'On A Friday')]\n",
+      "teddy boy [] [('teddy boy', 'The Beatles')]\n",
+      "the beatles seventh christmas record [] [('the beatles seventh christmas record', 'The Beatles')]\n",
+      "harry patch in memory of [] [('harry patch in memory of', 'Radiohead')]\n",
+      "through the lonely nights [] [('through the lonely nights', 'The Rolling Stones')]\n",
+      "pepperland laid waste [('pepperland laid waste', 'George Martin')] []\n",
+      "cant buy me love [('cant buy me love', 'The Beatles'), ('cant buy me love', 'The Beatles'), ('cant buy me love', 'The Beatles')] [('cant buy me love', 'The Beatles')]\n",
+      "look what youve done [] [('look what youve done', 'The Rolling Stones')]\n",
+      "can you take me back [] [('can you take me back', 'The Beatles')]\n",
+      "dirty work [('dirty work', 'The Rolling Stones'), ('dirty work', 'The Rolling Stones')] [('dirty work', 'The Rolling Stones')]\n",
+      "heart of stone [] [('heart of stone', 'The Rolling Stones')]\n",
+      "moonlight [] [('moonlight', 'The Beatles')]\n",
+      "in spite of all the danger [] [('in spite of all the danger', 'The Beatles')]\n",
+      "im down [] [('im down', 'The Beatles')]\n",
+      "walking the dog [] [('walking the dog', 'The Rolling Stones')]\n",
+      "the long and winding road [('the long and winding road', 'The Beatles'), ('the long and winding road', 'The Beatles')] [('the long and winding road', 'The Beatles')]\n",
+      "mick jaggers and john lennons introduction of the dirty mac [] [('mick jaggers and john lennons introduction of the dirty mac', 'The Rolling Stones')]\n",
+      "get off of my cloud [] [('get off of my cloud', 'The Rolling Stones')]\n",
+      "coke babies [] [('coke babies', 'Radiohead')]\n",
+      "ps i love you [('ps i love you', 'The Beatles')] [('ps i love you', 'The Beatles'), ('ps i love you', 'The Beatles')]\n",
+      "stupid car [] [('stupid car', 'Radiohead')]\n",
+      "nothin shakin but the leaves on the trees [] [('nothin shakin but the leaves on the trees', 'The Beatles')]\n",
+      "strawberry fields forever take 1 [] [('strawberry fields forever take 1', 'The Beatles')]\n",
+      "far away eyes [('far away eyes', 'The Rolling Stones'), ('far away eyes', 'The Rolling Stones')] [('far away eyes', 'The Rolling Stones')]\n",
+      "were wastin time [] [('were wastin time', 'The Rolling Stones')]\n",
+      "i go wild [('i go wild', 'The Rolling Stones'), ('i go wild', 'The Rolling Stones')] [('i go wild', 'The Rolling Stones')]\n",
+      "have a banana [] [('have a banana', 'The Beatles')]\n",
+      "sea of time [('sea of time', 'George Martin')] []\n",
+      "continental drift [('continental drift', 'The Rolling Stones'), ('continental drift', 'The Rolling Stones')] [('continental drift', 'The Rolling Stones')]\n",
+      "its all over now [] [('its all over now', 'The Rolling Stones')]\n",
+      "come together [('come together', 'The Beatles'), ('come together', 'The Beatles')] [('come together', 'The Beatles')]\n",
+      "sway [] [('sway', 'The Rolling Stones')]\n",
+      "somewhere [] [('somewhere', 'Ali brustofski')]\n",
+      "penny lane [('penny lane', 'The Beatles'), ('penny lane', 'The Beatles')] [('penny lane', 'The Beatles')]\n",
+      "beatles movie medley [] [('beatles movie medley', 'The Beatles')]\n",
+      "the thief [] [('the thief', 'Radiohead')]\n",
+      "mercy mercy [] [('mercy mercy', 'The Rolling Stones')]\n",
+      "egyptian song [] [('egyptian song', 'Radiohead')]\n",
+      "love of the loved [] [('love of the loved', 'The Beatles')]\n",
+      "i just dont understand [] [('i just dont understand', 'The Beatles')]\n",
+      "from fluff to you [] [('from fluff to you', 'The Beatles')]\n",
+      "youve got to hide your love away [('youve got to hide your love away', 'The Beatles')] [('youve got to hide your love away', 'The Beatles'), ('youve got to hide your love away', 'The Beatles')]\n",
+      "jumpin jack flash [('jumpin jack flash', 'The Rolling Stones'), ('jumpin jack flash', 'The Rolling Stones'), ('jumpin jack flash', 'The Rolling Stones')] [('jumpin jack flash', 'The Rolling Stones')]\n",
+      "gotta get away [] [('gotta get away', 'The Rolling Stones')]\n",
+      "give peace a chance [] [('give peace a chance', 'The Beatles')]\n",
+      "let it rock [] [('let it rock', 'The Rolling Stones')]\n",
+      "i cant get no satisfaction [('i cant get no satisfaction', 'The Rolling Stones'), ('i cant get no satisfaction', 'The Rolling Stones'), ('i cant get no satisfaction', 'The Rolling Stones'), ('i cant get no satisfaction', 'The Rolling Stones'), ('i cant get no satisfaction', 'The Rolling Stones')] [('i cant get no satisfaction', 'The Rolling Stones')]\n",
+      "falling in love again [] [('falling in love again', 'The Beatles')]\n",
+      "let me go [('let me go', 'The Rolling Stones'), ('let me go', 'The Rolling Stones')] [('let me go', 'The Rolling Stones')]\n",
+      "corinna [] [('corinna', 'The Rolling Stones')]\n",
+      "dollars and cents [] [('dollars and cents', 'Radiohead')]\n",
+      "lucille [] [('lucille', 'The Beatles')]\n",
+      "jumping jack flash [('jumping jack flash', 'The Rolling Stones')] []\n",
+      "you know my name look up the number [] [('you know my name look up the number', 'The Beatles')]\n",
+      "the trickster [] [('the trickster', 'Radiohead')]\n",
+      "she loves you [('she loves you', 'The Beatles'), ('she loves you', 'The Beatles')] [('she loves you', 'The Beatles'), ('she loves you', 'The Beatles')]\n",
+      "shes a rainbow [] [('shes a rainbow', 'The Rolling Stones')]\n",
+      "jiving sister fanny [] [('jiving sister fanny', 'The Rolling Stones')]\n",
+      "im gonna sit right down and cry over you [] [('im gonna sit right down and cry over you', 'The Beatles')]\n",
+      "paint it blacker [] [('paint it blacker', 'Plan B')]\n",
+      "when the saints go marchin in [] [('when the saints go marchin in', 'The Beatles')]\n",
+      "how can you be sure [] [('how can you be sure', 'Radiohead')]\n",
+      "if you really want to be my friend [] [('if you really want to be my friend', 'The Rolling Stones')]\n",
+      "sgt peppers lonely hearts club band reprise [] [('sgt peppers lonely hearts club band reprise', 'The Beatles')]\n",
+      "dollars cents live [('dollars cents live', 'Radiohead')] []\n",
+      "get back aka no pakistanis [] [('get back aka no pakistanis', 'The Beatles')]\n",
+      "give up the ghost brokenchord rmx [('give up the ghost brokenchord rmx', 'Radiohead')] []\n",
+      "each and every day of the year [] [('each and every day of the year', 'The Rolling Stones')]\n",
+      "19th nervous breakdown [] [('19th nervous breakdown', 'The Rolling Stones')]\n",
+      "true love waits live in oslo [('true love waits live in oslo', 'Radiohead')] []\n",
+      "pay your dues [] [('pay your dues', 'The Rolling Stones')]\n",
+      "you never wash up after yourself [] [('you never wash up after yourself', 'Radiohead')]\n",
+      "all sold out [] [('all sold out', 'The Rolling Stones')]\n",
+      "polyethylene parts 1 2 [] [('polyethylene parts 1 2', 'Radiohead')]\n",
+      "love these goon shows [] [('love these goon shows', 'The Beatles')]\n",
+      "around and around [] [('around and around', 'The Rolling Stones')]\n",
+      "palo alto [] [('palo alto', 'Radiohead')]\n",
+      "untogether [] [('untogether', 'Radiohead')]\n",
+      "doom and gloom [] [('doom and gloom', 'The Rolling Stones')]\n",
+      "the beatles third christmas record [] [('the beatles third christmas record', 'The Beatles')]\n",
+      "she smiled sweetly [] [('she smiled sweetly', 'The Rolling Stones')]\n",
+      "little queenie [] [('little queenie', 'The Rolling Stones')]\n",
+      "because i know you love me so [] [('because i know you love me so', 'The Beatles')]\n",
+      "we want the stones [] [('we want the stones', 'The Rolling Stones')]\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "sea of monsters [('sea of monsters', 'George Martin')] []\n",
+      "3 [] [('3', 'The Rolling Stones')]\n",
+      "linda lu [] [('linda lu', 'The Rolling Stones')]\n",
+      "please go home [] [('please go home', 'The Rolling Stones')]\n",
+      "tell me why ep [] [('tell me why ep', 'The Beatles')]\n",
+      "fight [('fight', 'The Rolling Stones'), ('fight', 'The Rolling Stones')] [('fight', 'The Rolling Stones')]\n",
+      "goodbye [] [('goodbye', 'The Beatles')]\n",
+      "mr b [] [('mr b', 'Radiohead')]\n",
+      "jerusalem [] [('jerusalem', 'On A Friday')]\n",
+      "bye bye johnny [] [('bye bye johnny', 'The Rolling Stones')]\n",
+      "india [] [('india', 'The Beatles')]\n",
+      "eds scary song [] [('eds scary song', 'Radiohead')]\n",
+      "beautiful delilah [] [('beautiful delilah', 'The Rolling Stones')]\n",
+      "upside down [] [('upside down', 'Radiohead')]\n",
+      "hello little girl [] [('hello little girl', 'The Beatles')]\n",
+      "meet me in the bottom [] [('meet me in the bottom', 'The Rolling Stones')]\n",
+      "feral lone rmx [('feral lone rmx', 'Radiohead')] []\n",
+      "aint she sweet [] [('aint she sweet', 'The Beatles')]\n",
+      "harlem shuffle ny mix [] [('harlem shuffle ny mix', 'The Rolling Stones')]\n",
+      "blue suede shoes [] [('blue suede shoes', 'The Beatles')]\n",
+      "road runner [] [('road runner', 'The Rolling Stones')]\n",
+      "leave my kitten alone [] [('leave my kitten alone', 'The Beatles')]\n",
+      "pantomime everywhere its christmas [] [('pantomime everywhere its christmas', 'The Beatles')]\n",
+      "keys to your love [] [('keys to your love', 'The Rolling Stones')]\n",
+      "lotus flower sbtrkt rmx [('lotus flower sbtrkt rmx', 'Radiohead')] []\n",
+      "little red rooster [('little red rooster', 'The Rolling Stones'), ('little red rooster', 'The Rolling Stones')] [('little red rooster', 'The Rolling Stones')]\n",
+      "complicated [] [('complicated', 'The Rolling Stones')]\n",
+      "im not signifying [] [('im not signifying', 'The Rolling Stones')]\n",
+      "sea of holes [('sea of holes', 'George Martin')] []\n",
+      "ooh my arms [] [('ooh my arms', 'The Beatles')]\n",
+      "cry to me [] [('cry to me', 'The Rolling Stones')]\n",
+      "prodigal son [] [('prodigal son', 'The Rolling Stones')]\n",
+      "everybody needs somebody to love finale [('everybody needs somebody to love finale', 'The Rolling Stones')] []\n",
+      "stand by me [] [('stand by me', 'The Beatles')]\n",
+      "please please me [('please please me', 'The Beatles')] [('please please me', 'The Beatles'), ('please please me', 'The Rolling Stones')]\n",
+      "big ideas [] [('big ideas', 'Radiohead')]\n",
+      "sympathy for the devil [('sympathy for the devil', 'The Rolling Stones'), ('sympathy for the devil', 'The Rolling Stones'), ('sympathy for the devil', 'The Rolling Stones')] [('sympathy for the devil', 'The Rolling Stones')]\n",
+      "pepperland [('pepperland', 'George Martin')] []\n",
+      "crying waiting hoping [] [('crying waiting hoping', 'The Beatles')]\n",
+      "punchdrunk lovesick singalong [] [('punchdrunk lovesick singalong', 'Radiohead')]\n",
+      "i dont know why aka dont know why i love you [] [('i dont know why aka dont know why i love you', 'The Rolling Stones')]\n",
+      "when im sixtyfour [] [('when im sixtyfour', 'The Beatles')]\n",
+      "a reminder [] [('a reminder', 'Radiohead')]\n",
+      "come togetherdear prudence [] [('come togetherdear prudence', 'The Beatles')]\n",
+      "four guys [] [('four guys', 'James Richards')]\n",
+      "cops and robbers [] [('cops and robbers', 'The Rolling Stones')]\n",
+      "you cant do that [('you cant do that', 'The Beatles'), ('you cant do that', 'The Beatles')] [('you cant do that', 'The Beatles')]\n",
+      "blue moon of kentucky [] [('blue moon of kentucky', 'The Beatles')]\n",
+      "andrews blues [] [('andrews blues', 'The Rolling Stones')]\n",
+      "bloom jamie xx rework [('bloom jamie xx rework', 'Radiohead')] []\n",
+      "how i made my millions [] [('how i made my millions', 'Radiohead')]\n",
+      "john lennon vs bill oreilly [] [('john lennon vs bill oreilly', 'Nice Peter')]\n",
+      "petrol gang [] [('petrol gang', 'The Rolling Stones')]\n",
+      "swanee river [] [('swanee river', 'The Beatles')]\n",
+      "cant get next to you [] [('cant get next to you', 'The Rolling Stones')]\n",
+      "empty heart [] [('empty heart', 'The Rolling Stones')]\n",
+      "let it loose [] [('let it loose', 'The Rolling Stones')]\n",
+      "susie q [] [('susie q', 'The Rolling Stones')]\n",
+      "so how come no one loves me [] [('so how come no one loves me', 'The Beatles')]\n",
+      "no reply demo [] [('no reply demo', 'The Beatles')]\n",
+      "babys in black [('babys in black', 'The Beatles'), ('babys in black', 'The Beatles')] [('babys in black', 'The Beatles')]\n",
+      "if youve got trouble [] [('if youve got trouble', 'The Beatles')]\n",
+      "anyway you look at it [] [('anyway you look at it', 'The Rolling Stones')]\n",
+      "thank you girl [] [('thank you girl', 'The Beatles')]\n",
+      "ladies and gentlemen the rolling stones [] [('ladies and gentlemen the rolling stones', 'The Rolling Stones')]\n",
+      "you cant catch me [] [('you cant catch me', 'The Rolling Stones')]\n",
+      "slipping away [('slipping away', 'The Rolling Stones'), ('slipping away', 'The Rolling Stones')] [('slipping away', 'The Rolling Stones')]\n",
+      "morning mr magpie pearson sound scavenger rmx [('morning mr magpie pearson sound scavenger rmx', 'Radiohead')] []\n",
+      "jigsaw puzzle [] [('jigsaw puzzle', 'The Rolling Stones')]\n",
+      "congratulations [] [('congratulations', 'The Rolling Stones')]\n",
+      "i want to hold your hand [('i want to hold your hand', 'The Beatles'), ('i want to hold your hand', 'The Beatles')] [('i want to hold your hand', 'The Beatles'), ('i want to hold your hand', 'Ali brustofski')]\n",
+      "winter [] [('winter', 'The Rolling Stones')]\n",
+      "whatd i say [] [('whatd i say', 'The Beatles')]\n",
+      "bitch [] [('bitch', 'The Rolling Stones')]\n",
+      "she said yeah [] [('she said yeah', 'The Rolling Stones')]\n",
+      "komm gib mir deine hand [] [('komm gib mir deine hand', 'The Beatles')]\n",
+      "i need you baby mona [] [('i need you baby mona', 'The Rolling Stones')]\n",
+      "the fool on the hill take 4 [] [('the fool on the hill take 4', 'The Beatles')]\n",
+      "memphis [] [('memphis', 'The Beatles')]\n",
+      "searchin [] [('searchin', 'The Beatles')]\n",
+      "thats alright mama [] [('thats alright mama', 'The Beatles')]\n",
+      "confessin the blues [] [('confessin the blues', 'The Rolling Stones')]\n",
+      "shine a light [('shine a light', 'The Rolling Stones'), ('shine a light', 'The Rolling Stones'), ('shine a light', 'The Rolling Stones')] [('shine a light', 'The Rolling Stones')]\n",
+      "the lantern [] [('the lantern', 'The Rolling Stones')]\n",
+      "follow me around [] [('follow me around', 'Radiohead')]\n",
+      "dream baby [] [('dream baby', 'The Beatles')]\n",
+      "talk show host [] [('talk show host', 'Radiohead')]\n",
+      "it hurts me too [] [('it hurts me too', 'The Rolling Stones')]\n",
+      "come and get it [] [('come and get it', 'The Beatles')]\n",
+      "shake rattle and roll [] [('shake rattle and roll', 'The Beatles')]\n",
+      "its only rock n roll but i like it [('its only rock n roll but i like it', 'The Rolling Stones'), ('its only rock n roll but i like it', 'The Rolling Stones')] [('its only rock n roll but i like it', 'The Rolling Stones')]\n",
+      "ive been loving you too long [] [('ive been loving you too long', 'The Rolling Stones')]\n",
+      "ventilator blues [] [('ventilator blues', 'The Rolling Stones')]\n",
+      "this boy [] [('this boy', 'The Beatles')]\n",
+      "out of control [('out of control', 'The Rolling Stones'), ('out of control', 'The Rolling Stones')] [('out of control', 'The Rolling Stones')]\n",
+      "when im sixty four [('when im sixty four', 'The Beatles')] []\n",
+      "respectable [('respectable', 'The Rolling Stones'), ('respectable', 'The Rolling Stones')] [('respectable', 'The Rolling Stones')]\n",
+      "winning ugly [('winning ugly', 'The Rolling Stones'), ('winning ugly', 'The Rolling Stones')] [('winning ugly', 'The Rolling Stones')]\n",
+      "the sheik of araby [] [('the sheik of araby', 'The Beatles')]\n",
+      "poison ivy [] [('poison ivy', 'The Rolling Stones')]\n",
+      "i just want to make love to you [] [('i just want to make love to you', 'The Rolling Stones')]\n",
+      "kansas city [] [('kansas city', 'The Beatles')]\n",
+      "honest i do [] [('honest i do', 'The Rolling Stones')]\n",
+      "everything is turning to gold [] [('everything is turning to gold', 'The Rolling Stones')]\n",
+      "jump on top of me [] [('jump on top of me', 'The Rolling Stones')]\n",
+      "set fire to that lot speech [] [('set fire to that lot speech', 'The Beatles')]\n",
+      "ride on baby [] [('ride on baby', 'The Rolling Stones')]\n",
+      "2120 south michigan avenue [] [('2120 south michigan avenue', 'The Rolling Stones')]\n",
+      "i want to know [] [('i want to know', 'On A Friday')]\n",
+      "lonesome tears in my eyes [] [('lonesome tears in my eyes', 'The Beatles')]\n",
+      "cook cook blues [] [('cook cook blues', 'The Rolling Stones')]\n",
+      "money [] [('money', 'The Rolling Stones')]\n",
+      "stranger in my arms [] [('stranger in my arms', 'The Beatles')]\n",
+      "climbing up a bloody great hill [] [('climbing up a bloody great hill', 'Radiohead')]\n",
+      "sleepy city [] [('sleepy city', 'The Rolling Stones')]\n",
+      "lotus flower jacques greene rmx [('lotus flower jacques greene rmx', 'Radiohead')] []\n",
+      "salt of the earth [] [('salt of the earth', 'The Rolling Stones')]\n",
+      "cool calm and collected [] [('cool calm and collected', 'The Rolling Stones')]\n",
+      "hello goodbye [('hello goodbye', 'The Beatles'), ('hello goodbye', 'The Beatles')] [('hello goodbye', 'The Beatles')]\n",
+      "miss you dr dre remix 2002 [] [('miss you dr dre remix 2002', 'The Rolling Stones')]\n",
+      "tumbling dice [('tumbling dice', 'The Rolling Stones'), ('tumbling dice', 'The Rolling Stones')] [('tumbling dice', 'The Rolling Stones')]\n",
+      "just my imagination [('just my imagination', 'The Rolling Stones')] []\n",
+      "everybody needs somebody to love [('everybody needs somebody to love', 'Solomon Burke'), ('everybody needs somebody to love', 'The Rolling Stones')] [('everybody needs somebody to love', 'The Rolling Stones')]\n",
+      "stop breaking down [] [('stop breaking down', 'The Rolling Stones')]\n",
+      "riding on a bus [] [('riding on a bus', 'The Beatles')]\n",
+      "take good care of my baby [] [('take good care of my baby', 'The Beatles')]\n",
+      "id much rather be with the boys [] [('id much rather be with the boys', 'The Rolling Stones')]\n",
+      "its for you [] [('its for you', 'The Beatles')]\n",
+      "wish you were here [] [('wish you were here', 'Radiohead')]\n",
+      "little by little shed [('little by little shed', 'Radiohead')] []\n",
+      "my girl [] [('my girl', 'The Rolling Stones')]\n",
+      "memphis tennessee [] [('memphis tennessee', 'The Beatles'), ('memphis tennessee', 'The Rolling Stones')]\n",
+      "moonlight mile [] [('moonlight mile', 'The Rolling Stones')]\n",
+      "phillipa chicken [] [('phillipa chicken', 'Radiohead')]\n",
+      "down in eastern australia [] [('down in eastern australia', 'The Beatles')]\n",
+      "aint that loving you baby [] [('aint that loving you baby', 'The Rolling Stones')]\n",
+      "final show [] [('final show', 'Beatles Candlestick Park Setlist')]\n",
+      "words of love ep [] [('words of love ep', 'The Beatles')]\n",
+      "sing this all together [] [('sing this all together', 'The Rolling Stones')]\n",
+      "let it be [('let it be', 'The Beatles'), ('let it be', 'The Beatles')] [('let it be', 'The Beatles')]\n",
+      "i cant be satisfied [] [('i cant be satisfied', 'The Rolling Stones')]\n",
+      "time waits for no one [] [('time waits for no one', 'The Rolling Stones')]\n",
+      "the rocky road to dublin [] [('the rocky road to dublin', 'The Chieftains')]\n",
+      "fancyman blues [] [('fancyman blues', 'The Rolling Stones')]\n",
+      "rain fall down william remix [] [('rain fall down william remix', 'The Rolling Stones')]\n",
+      "sure to fall [] [('sure to fall', 'The Beatles')]\n",
+      "i will los angeles version [('i will los angeles version', 'Radiohead')] []\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "sittin on a fence [] [('sittin on a fence', 'The Rolling Stones')]\n",
+      "pass the wine sophia loren [] [('pass the wine sophia loren', 'The Rolling Stones')]\n",
+      "grown up wrong [] [('grown up wrong', 'The Rolling Stones')]\n",
+      "think [] [('think', 'The Rolling Stones')]\n",
+      "idioteque live in oxford [('idioteque live in oxford', 'Radiohead')] []\n",
+      "sour milk sea [] [('sour milk sea', 'The Beatles')]\n",
+      "killer cars [] [('killer cars', 'Radiohead')]\n",
+      "tell me [] [('tell me', 'The Rolling Stones')]\n",
+      "sie liebt dich [] [('sie liebt dich', 'The Beatles')]\n",
+      "movie medley [] [('movie medley', 'The Beatles')]\n",
+      "one more try [] [('one more try', 'The Rolling Stones')]\n",
+      "tkol altrice rmx [('tkol altrice rmx', 'Radiohead')] []\n",
+      "mannish boy [] [('mannish boy', 'The Rolling Stones')]\n",
+      "commonwealth [] [('commonwealth', 'The Beatles')]\n",
+      "ceremony [] [('ceremony', 'Radiohead')]\n",
+      "dance little sister [] [('dance little sister', 'The Rolling Stones')]\n",
+      "i call your name [] [('i call your name', 'The Beatles')]\n",
+      "sing this all together see what happens [] [('sing this all together see what happens', 'The Rolling Stones')]\n",
+      "the happy rishikesh song [] [('the happy rishikesh song', 'The Beatles')]\n",
+      "revolution 1 [('revolution 1', 'The Beatles')] []\n",
+      "you gotta move [] [('you gotta move', 'The Rolling Stones')]\n",
+      "fog again live [('fog again live', 'Radiohead')] []\n",
+      "key to the highway [('key to the highway', 'The Rolling Stones'), ('key to the highway', 'The Rolling Stones')] []\n",
+      "you dont have to mean it [('you dont have to mean it', 'The Rolling Stones'), ('you dont have to mean it', 'The Rolling Stones')] [('you dont have to mean it', 'The Rolling Stones')]\n",
+      "mothers little helper [] [('mothers little helper', 'The Rolling Stones')]\n",
+      "one and one is two [] [('one and one is two', 'The Beatles')]\n",
+      "permanent daylight [] [('permanent daylight', 'Radiohead')]\n",
+      "parachute woman [] [('parachute woman', 'The Rolling Stones')]\n",
+      "sympathy for the devil the neptunes remix [] [('sympathy for the devil the neptunes remix', 'The Rolling Stones')]\n",
+      "drift away [] [('drift away', 'The Rolling Stones')]\n",
+      "hand of fate [] [('hand of fate', 'The Rolling Stones')]\n",
+      "100 years ago [] [('100 years ago', 'The Rolling Stones')]\n",
+      "hold back [('hold back', 'The Rolling Stones'), ('hold back', 'The Rolling Stones')] [('hold back', 'The Rolling Stones')]\n",
+      "saints [] [('saints', 'The Beatles')]\n",
+      "angie [('angie', 'The Rolling Stones'), ('angie', 'The Rolling Stones'), ('angie', 'The Rolling Stones')] [('angie', 'The Rolling Stones')]\n",
+      "doncha bother me [] [('doncha bother me', 'The Rolling Stones')]\n",
+      "roll over beethoven [('roll over beethoven', 'The Beatles'), ('roll over beethoven', 'The Beatles')] [('roll over beethoven', 'The Beatles'), ('roll over beethoven', 'The Rolling Stones')]\n",
+      "packt like sardines in a crushed tin box [('packt like sardines in a crushed tin box', 'Radiohead')] []\n",
+      "hallelujah i love her so [] [('hallelujah i love her so', 'The Beatles')]\n",
+      "young blood [] [('young blood', 'The Beatles')]\n",
+      "aint too proud to beg [] [('aint too proud to beg', 'The Rolling Stones')]\n",
+      "something [('something', 'The Beatles'), ('something', 'The Beatles')] [('something', 'The Beatles')]\n",
+      "flight 505 [] [('flight 505', 'The Rolling Stones')]\n",
+      "hey crawdaddy [] [('hey crawdaddy', 'The Rolling Stones')]\n",
+      "miss you [('miss you', 'The Rolling Stones'), ('miss you', 'The Rolling Stones'), ('miss you', 'The Rolling Stones'), ('miss you', 'The Rolling Stones'), ('miss you', 'The Rolling Stones')] [('miss you', 'The Rolling Stones')]\n",
+      "midnight rambler [('midnight rambler', 'The Rolling Stones'), ('midnight rambler', 'The Rolling Stones')] [('midnight rambler', 'The Rolling Stones')]\n",
+      "rhinestone cowboy [] [('rhinestone cowboy', 'Radiohead')]\n",
+      "supercollider [] [('supercollider', 'Radiohead')]\n",
+      "i think im going mad [] [('i think im going mad', 'The Rolling Stones')]\n",
+      "whats the new mary jane [] [('whats the new mary jane', 'The Beatles')]\n",
+      "carol [] [('carol', 'The Beatles'), ('carol', 'The Rolling Stones')]\n",
+      "a little rhyme [] [('a little rhyme', 'The Beatles')]\n",
+      "memo from turner [] [('memo from turner', 'The Rolling Stones')]\n",
+      "just my imagination running away with me [('just my imagination running away with me', 'The Rolling Stones'), ('just my imagination running away with me', 'The Rolling Stones'), ('just my imagination running away with me', 'The Rolling Stones')] [('just my imagination running away with me', 'The Rolling Stones')]\n",
+      "rain [] [('rain', 'The Beatles')]\n",
+      "my bonnie german intro [] [('my bonnie german intro', 'The Beatles')]\n",
+      "yove got to hide your love away [] [('yove got to hide your love away', 'The Beatles')]\n",
+      "manowar [] [('manowar', 'Radiohead')]\n",
+      "sgt peppers lonely hearts club band [('sgt peppers lonely hearts club band', 'The Beatles'), ('sgt peppers lonely hearts club band', 'The Beatles')] [('sgt peppers lonely hearts club band', 'The Beatles')]\n",
+      "diddley daddy [] [('diddley daddy', 'The Rolling Stones')]\n",
+      "molasses [] [('molasses', 'Radiohead')]\n",
+      "you know my name [] [('you know my name', 'The Beatles')]\n",
+      "nothing from nothing [] [('nothing from nothing', 'The Rolling Stones')]\n",
+      "so divine aladdin story [] [('so divine aladdin story', 'The Rolling Stones')]\n",
+      "i cant help it [] [('i cant help it', 'The Rolling Stones')]\n",
+      "keep strong [] [('keep strong', 'On A Friday')]\n",
+      "some things just stick in your mind [] [('some things just stick in your mind', 'The Rolling Stones')]\n",
+      "bad boy [] [('bad boy', 'The Beatles')]\n",
+      "star star [] [('star star', 'The Rolling Stones')]\n",
+      "pop is dead [] [('pop is dead', 'Radiohead')]\n",
+      "on with the show [] [('on with the show', 'The Rolling Stones')]\n",
+      "blackbirdyesterday [] [('blackbirdyesterday', 'The Beatles')]\n",
+      "sha la la la la [] [('sha la la la la', 'The Beatles')]\n",
+      "on the beach [] [('on the beach', 'Radiohead')]\n",
+      "if you let me [] [('if you let me', 'The Rolling Stones')]\n",
+      "help [('help', 'The Beatles'), ('help', 'The Beatles'), ('help', 'The Beatles')] [('help', 'The Beatles')]\n",
+      "something with blue jay way transition [] [('something with blue jay way transition', 'The Beatles')]\n",
+      "following the river [] [('following the river', 'The Rolling Stones')]\n",
+      "i aint superstitious [] [('i aint superstitious', 'The Rolling Stones')]\n",
+      "backstreet girl [] [('backstreet girl', 'The Rolling Stones')]\n",
+      "if i was a dancer dance part 2 [] [('if i was a dancer dance part 2', 'The Rolling Stones')]\n",
+      "sweet black angel [] [('sweet black angel', 'The Rolling Stones')]\n",
+      "not guilty [] [('not guilty', 'The Beatles')]\n",
+      "shake your hips [] [('shake your hips', 'The Rolling Stones')]\n",
+      "i get a kick out of you [] [('i get a kick out of you', 'The Rolling Stones')]\n",
+      "missing links bootleg [] [('missing links bootleg', 'Plan B')]\n",
+      "thatll be the day [] [('thatll be the day', 'The Beatles')]\n",
+      "step inside love los paranoias [] [('step inside love los paranoias', 'The Beatles')]\n",
+      "silver train [] [('silver train', 'The Rolling Stones')]\n",
+      "boys [('boys', 'The Beatles'), ('boys', 'The Beatles')] [('boys', 'The Beatles')]\n",
+      "bloom mark pritchard rmx [('bloom mark pritchard rmx', 'Radiohead')] []\n",
+      "john wesley harding [] [('john wesley harding', 'The Rolling Stones')]\n",
+      "a punchup at a wedding [] [('a punchup at a wedding', 'Radiohead')]\n",
+      "under the board walk [] [('under the board walk', 'The Rolling Stones')]\n",
+      "inside my head [] [('inside my head', 'Radiohead')]\n",
+      "to know her is to love her [] [('to know her is to love her', 'The Beatles')]\n",
+      "rip it up medley [] [('rip it up medley', 'The Beatles')]\n",
+      "good evening mrs magpie modeselektor rmx [('good evening mrs magpie modeselektor rmx', 'Radiohead')] []\n",
+      "brown sugar [('brown sugar', 'The Rolling Stones'), ('brown sugar', 'The Rolling Stones'), ('brown sugar', 'The Rolling Stones'), ('brown sugar', 'The Rolling Stones'), ('brown sugar', 'The Rolling Stones')] [('brown sugar', 'The Rolling Stones')]\n",
+      "miss amanda jones [] [('miss amanda jones', 'The Rolling Stones')]\n",
+      "ready teddy [] [('ready teddy', 'The Beatles')]\n",
+      "morning mr magpie nathan fake rmx [('morning mr magpie nathan fake rmx', 'Radiohead')] []\n",
+      "rock and a hard place [('rock and a hard place', 'The Rolling Stones'), ('rock and a hard place', 'The Rolling Stones')] [('rock and a hard place', 'The Rolling Stones')]\n",
+      "im talking about you [] [('im talking about you', 'The Beatles')]\n",
+      "medley rip it up shake rattle and roll blue suede shoes [] [('medley rip it up shake rattle and roll blue suede shoes', 'The Beatles')]\n",
+      "can you hear the music [] [('can you hear the music', 'The Rolling Stones')]\n",
+      "what is that you say [] [('what is that you say', 'Radiohead')]\n",
+      "sweet georgia brown [] [('sweet georgia brown', 'The Beatles')]\n",
+      "gimme shelter [('gimme shelter', 'The Rolling Stones'), ('gimme shelter', 'The Rolling Stones'), ('gimme shelter', 'The Rolling Stones')] [('gimme shelter', 'The Rolling Stones')]\n",
+      "jingle bells [] [('jingle bells', 'The Beatles')]\n",
+      "im a king bee [] [('im a king bee', 'The Rolling Stones')]\n",
+      "take it or leave it [] [('take it or leave it', 'The Rolling Stones')]\n",
+      "long long while [] [('long long while', 'The Rolling Stones')]\n",
+      "packt like sardines in a crushd tin box [] [('packt like sardines in a crushd tin box', 'Radiohead')]\n",
+      "2000 light years from home [] [('2000 light years from home', 'The Rolling Stones')]\n",
+      "being for the benefit of mr kite takes 1 2 [] [('being for the benefit of mr kite takes 1 2', 'The Beatles')]\n",
+      "real love [] [('real love', 'The Beatles')]\n",
+      "reminiscing [] [('reminiscing', 'The Beatles')]\n",
+      "just a rumour speech [] [('just a rumour speech', 'The Beatles')]\n",
+      "nothin shakin [] [('nothin shakin', 'The Beatles')]\n",
+      "we love you [] [('we love you', 'The Rolling Stones')]\n",
+      "one more shot [] [('one more shot', 'The Rolling Stones')]\n",
+      "im coming up [] [('im coming up', 'On A Friday')]\n",
+      "the beatles christmas record [] [('the beatles christmas record', 'The Beatles')]\n",
+      "i want to be loved [] [('i want to be loved', 'The Rolling Stones')]\n",
+      "my obsession [] [('my obsession', 'The Rolling Stones')]\n",
+      "somebody else [] [('somebody else', 'Radiohead')]\n",
+      "2000 man [] [('2000 man', 'The Rolling Stones')]\n",
+      "ill get you [] [('ill get you', 'The Beatles')]\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "cry for a shadow [] [('cry for a shadow', 'The Beatles')]\n",
+      "wicked child [] [('wicked child', 'Radiohead')]\n",
+      "like dreamers do [] [('like dreamers do', 'The Beatles')]\n",
+      "step inside love [] [('step inside love', 'The Beatles')]\n",
+      "sad day [] [('sad day', 'The Rolling Stones')]\n",
+      "talkin about you [] [('talkin about you', 'The Rolling Stones')]\n",
+      "faithless the wonderboy [] [('faithless the wonderboy', 'Radiohead')]\n",
+      "dancing with mr d [] [('dancing with mr d', 'The Rolling Stones')]\n",
+      "im going down [] [('im going down', 'The Rolling Stones')]\n",
+      "who am i [] [('who am i', 'The Rolling Stones')]\n",
+      "untitled [('untitled', 'Radiohead')] []\n",
+      "we are wasting time [] [('we are wasting time', 'The Rolling Stones')]\n",
+      "moonlight bay [] [('moonlight bay', 'The Beatles')]\n",
+      "eleanor rigby [('eleanor rigby', 'The Beatles'), ('eleanor rigby', 'The Beatles')] [('eleanor rigby', 'The Beatles')]\n",
+      "pain in my heart [('pain in my heart', 'The Rolling Stones')] [('pain in my heart', 'The Rolling Stones'), ('pain in my heart', 'The Rolling Stones')]\n",
+      "some girls [('some girls', 'The Rolling Stones'), ('some girls', 'The Rolling Stones'), ('some girls', 'The Rolling Stones')] [('some girls', 'The Rolling Stones')]\n",
+      "mona [] [('mona', 'The Rolling Stones')]\n",
+      "the hippy hippy shake [] [('the hippy hippy shake', 'The Beatles')]\n",
+      "baby please dont go [] [('baby please dont go', 'The Rolling Stones')]\n",
+      "sad sad sad [('sad sad sad', 'The Rolling Stones'), ('sad sad sad', 'The Rolling Stones')] [('sad sad sad', 'The Rolling Stones')]\n",
+      "cocksucker blues [] [('cocksucker blues', 'The Rolling Stones')]\n",
+      "junk [] [('junk', 'The Beatles')]\n",
+      "everybodys trying to be my baby [('everybodys trying to be my baby', 'The Beatles'), ('everybodys trying to be my baby', 'The Beatles')] [('everybodys trying to be my baby', 'The Beatles')]\n",
+      "mick jaggers introduction to jethro tull [] [('mick jaggers introduction to jethro tull', 'The Rolling Stones')]\n",
+      "hot stuff [] [('hot stuff', 'The Rolling Stones')]\n",
+      "my bonnie [] [('my bonnie', 'Tony Sheridan'), ('my bonnie', 'The Beatles')]\n",
+      "these are my twisted words [] [('these are my twisted words', 'Radiohead')]\n",
+      "whos driving your plane [] [('whos driving your plane', 'The Rolling Stones')]\n",
+      "the singer not the song [] [('the singer not the song', 'The Rolling Stones')]\n",
+      "da doo ron ron [] [('da doo ron ron', 'The Rolling Stones')]\n",
+      "what goes on girl [] [('what goes on girl', 'The Beatles')]\n",
+      "bullet proofi wish i was [] [('bullet proofi wish i was', 'Radiohead')]\n",
+      "the under assistant west coast promotion man [] [('the under assistant west coast promotion man', 'The Rolling Stones')]\n",
+      "yes i am [] [('yes i am', 'Radiohead')]\n",
+      "some other guy [] [('some other guy', 'The Beatles')]\n",
+      "sinking ship [] [('sinking ship', 'On A Friday')]\n",
+      "mick jaggers introduction of rock roll circus [] [('mick jaggers introduction of rock roll circus', 'The Rolling Stones')]\n",
+      "kid a tracklist album cover [] [('kid a tracklist album cover', 'Radiohead')]\n",
+      "sister morphine [] [('sister morphine', 'The Rolling Stones')]\n",
+      "oh baby we got a good thing goin [] [('oh baby we got a good thing goin', 'The Rolling Stones')]\n",
+      "intro [] [('intro', 'The Rolling Stones')]\n",
+      "the honeymoon song [] [('the honeymoon song', 'The Beatles')]\n",
+      "plundered my soul [] [('plundered my soul', 'The Rolling Stones')]\n",
+      "stealing my heart [] [('stealing my heart', 'The Rolling Stones')]\n",
+      "old brown shoe [] [('old brown shoe', 'The Beatles')]\n",
+      "clarabella [] [('clarabella', 'The Beatles')]\n",
+      "i got a woman [] [('i got a woman', 'The Beatles')]\n",
+      "1822 [] [('1822', 'The Beatles')]\n",
+      "revolution i [] [('revolution i', 'The Beatles')]\n",
+      "crazy mama [] [('crazy mama', 'The Rolling Stones')]\n",
+      "cant be seen [('cant be seen', 'The Rolling Stones'), ('cant be seen', 'The Rolling Stones')] [('cant be seen', 'The Rolling Stones')]\n",
+      "the inner light [] [('the inner light', 'The Beatles')]\n",
+      "banana co [] [('banana co', 'Radiohead')]\n",
+      "three cool cats [] [('three cool cats', 'The Beatles')]\n",
+      "it should be you [] [('it should be you', 'The Rolling Stones')]\n",
+      "travellin man [] [('travellin man', 'The Rolling Stones')]\n",
+      "ooh my soul [] [('ooh my soul', 'The Beatles')]\n",
+      "a hard days night [('a hard days night', 'The Beatles'), ('a hard days night', 'The Beatles'), ('a hard days night', 'The Beatles')] [('a hard days night', 'The Beatles')]\n",
+      "big boots [] [('big boots', 'Radiohead')]\n",
+      "youve got a hold on me [] [('youve got a hold on me', 'The Beatles')]\n",
+      "cut a hole [] [('cut a hole', 'Radiohead')]\n",
+      "dont lie to me [] [('dont lie to me', 'The Rolling Stones')]\n",
+      "skttrbrain four tet remix [('skttrbrain four tet remix', 'Radiohead')] []\n",
+      "torn and frayed [] [('torn and frayed', 'The Rolling Stones')]\n",
+      "too much monkey business [] [('too much monkey business', 'The Beatles')]\n",
+      "a punch up at a wedding [('a punch up at a wedding', 'Radiohead')] []\n",
+      "not fade away [('not fade away', 'The Rolling Stones'), ('not fade away', 'The Rolling Stones')] [('not fade away', 'The Rolling Stones')]\n",
+      "wild horses [('wild horses', 'The Rolling Stones')] [('wild horses', 'Plan B'), ('wild horses', 'The Rolling Stones')]\n",
+      "i froze up [] [('i froze up', 'Radiohead')]\n",
+      "free as a bird [] [('free as a bird', 'The Beatles')]\n",
+      "dizzy miss lizzy [('dizzy miss lizzy', 'The Beatles'), ('dizzy miss lizzy', 'The Beatles')] [('dizzy miss lizzy', 'The Beatles')]\n",
+      "india rubber [] [('india rubber', 'Radiohead')]\n",
+      "back to zero [('back to zero', 'The Rolling Stones'), ('back to zero', 'The Rolling Stones')] [('back to zero', 'The Rolling Stones')]\n",
+      "little by little [('little by little', 'Radiohead')] [('little by little', 'Radiohead'), ('little by little', 'The Rolling Stones')]\n",
+      "that girl belongs to yesterday [] [('that girl belongs to yesterday', 'The Rolling Stones')]\n",
+      "ill wear it proudly [] [('ill wear it proudly', 'Radiohead')]\n",
+      "summertime blues [] [('summertime blues', 'The Rolling Stones')]\n",
+      "short and curlies [] [('short and curlies', 'The Rolling Stones')]\n",
+      "family [] [('family', 'The Rolling Stones')]\n",
+      "lies [('lies', 'The Rolling Stones'), ('lies', 'The Rolling Stones')] [('lies', 'The Rolling Stones')]\n",
+      "beatle greetings [] [('beatle greetings', 'The Beatles')]\n",
+      "dancing in the light [] [('dancing in the light', 'The Rolling Stones')]\n",
+      "i dont know why [] [('i dont know why', 'The Rolling Stones')]\n",
+      "she was hot [('she was hot', 'The Rolling Stones'), ('she was hot', 'The Rolling Stones')] [('she was hot', 'The Rolling Stones')]\n",
+      "melody [] [('melody', 'The Rolling Stones')]\n",
+      "all you need is love [('all you need is love', 'The Beatles'), ('all you need is love', 'The Beatles'), ('all you need is love', 'The Beatles')] [('all you need is love', 'The Beatles')]\n",
+      "shout [] [('shout', 'The Beatles')]\n",
+      "ya ya [] [('ya ya', 'The Beatles')]\n",
+      "memory motel [] [('memory motel', 'The Rolling Stones')]\n",
+      "something happened to me yesterday [] [('something happened to me yesterday', 'The Rolling Stones')]\n",
+      "intro excerpt from fanfare for the common man [] [('intro excerpt from fanfare for the common man', 'The Rolling Stones')]\n"
+     ]
+    }
+   ],
    "source": [
-    "for t in tracks.find({}, ['ctitle', 'duration_ms']):\n",
-    "    gts = genius_tracks.find({'ctitle': t['ctitle'], 'lyrics': {'$exists': True}}, ['lyrics', 'original_lyrics'])\n",
-    "    for gt in gts:\n",
-    "        tracks.update_one({'_id': t['_id']}, \n",
-    "                          {'$set': {'lyrics': gt['lyrics'], \n",
-    "                                    'original_lyrics': gt['original_lyrics'],\n",
-    "                                    'lyrical_density': 1000 * len(gt['lyrics'].split()) / t['duration_ms']}})"
+    "for ct in ctitles:\n",
+    "    sts = [(t['ctitle'], t['artist_name']) for t in tracks.find({'ctitle': ct}, ['ctitle', 'artist_name'])]\n",
+    "    gts = [(t['ctitle'], t['primary_artist']['name']) for t in genius_tracks.find({'ctitle': ct}, ['ctitle', 'primary_artist.name'])]\n",
+    "    if len(sts) != 1 or len(gts) != 1:\n",
+    "        print(ct, sts, gts)"
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": 44,
    "metadata": {},
+   "outputs": [],
    "source": [
-    "## Sentiment analysis<a name=\"sentimentanalysis\"></a>\n",
-    "I couldn't find an easily-installable equivalent to the NRC corpus, so I'm using a sentiment analysis API endpoint from [Text Processing](http://text-processing.com/docs/sentiment.html).\n",
+    "def levenshtein(s1, s2):\n",
+    "    if len(s1) < len(s2):\n",
+    "        return levenshtein(s2, s1)\n",
     "\n",
-    "* [Top](#top)"
+    "    # len(s1) >= len(s2)\n",
+    "    if len(s2) == 0:\n",
+    "        return len(s1)\n",
+    "\n",
+    "    previous_row = range(len(s2) + 1)\n",
+    "    for i, c1 in enumerate(s1):\n",
+    "        current_row = [i + 1]\n",
+    "        for j, c2 in enumerate(s2):\n",
+    "            insertions = previous_row[j + 1] + 1 # j+1 instead of j since previous_row and current_row are one character longer\n",
+    "            deletions = current_row[j] + 1       # than s2\n",
+    "            substitutions = previous_row[j] + (c1 != c2)\n",
+    "            current_row.append(min(insertions, deletions, substitutions))\n",
+    "        previous_row = current_row\n",
+    "    \n",
+    "    return previous_row[-1]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 81,
+   "execution_count": 76,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
-   "source": [
-    "for t in tracks.find({'lyrics': {'$exists': True}}, ['lyrics']):\n",
-    "    text = t['lyrics']\n",
-    "    if text:\n",
-    "        query = urllib.parse.urlencode({'text': text}).encode('ascii')\n",
-    "        headers = {'Accept': 'application/json',\n",
-    "                   'User-Agent': 'curl/7.9.8 (i686-pc-linux-gnu) libcurl 7.9.8 (OpenSSL 0.9.6b) (ipv6 enabled)'}\n",
-    "        request = urllib.request.Request('http://text-processing.com/api/sentiment/', \n",
-    "                                 headers=headers, data=query)\n",
-    "        with urllib.request.urlopen(request) as f:\n",
-    "            response = json.loads(f.read().decode('utf-8'))\n",
-    "            tracks.update_one({'_id': t['_id']}, {'$set': {'sentiment': response}})"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 82,
-   "metadata": {},
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "dict_keys(['sentiment', 'mode', 'instrumentalness', 'href', 'energy', 'album', 'track_href', 'popularity', 'disc_number', 'liveness', 'available_markets', 'name', 'track_number', 'loudness', 'danceability', 'lyrics', 'uri', 'speechiness', 'type', 'explicit', 'external_urls', 'external_ids', 'artist_id', 'id', 'analysis_url', 'album_id', 'valence', '_id', 'lyrical_density', 'acousticness', 'ctitle', 'duration_ms', 'preview_url', 'artists', 'tempo', 'time_signature', 'artist_name', 'key', 'original_lyrics'])"
-      ]
-     },
-     "execution_count": 82,
-     "metadata": {},
-     "output_type": "execute_result"
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('sea of monsters', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 23 True\n",
+      "('just my imagination', 'The Rolling Stones') ('out of control', 'The Rolling Stones') 12 True\n",
+      "('jumping jack flash', 'The Rolling Stones') ('jumpin jack flash', 'The Rolling Stones') 1 True\n",
+      "('pepperland laid waste', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 25 True\n",
+      "('little ta', 'The Rolling Stones') ('little t a', 'The Rolling Stones') 1 False\n",
+      "('kansas city heyheyheyhey', 'The Beatles') ('medley kansas cityhey hey hey hey', 'The Beatles') 11 False\n",
+      "('bullet proof i wish i was', 'Radiohead') ('bullet proofi wish i was', 'Radiohead') 1 False\n",
+      "('sea of holes', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 25 True\n",
+      "('packt like sardines in a crushed tin box', 'Radiohead') ('packt like sardines in a crushd tin box', 'Radiohead') 1 False\n",
+      "('codex illum sphere', 'Radiohead') ('the butcher', 'Radiohead') 12 False\n",
+      "('outro', 'Jimi Hendrix') Missing 99999 False\n",
+      "('pepperland', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 20 True\n",
+      "('key to the highway', 'The Rolling Stones') ('thief in the night', 'The Rolling Stones') 10 True\n",
+      "('march of the meanies', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 24 True\n",
+      "('dollars cents', 'Radiohead') ('dollars and cents', 'Radiohead') 4 False\n",
+      "('little by little shed', 'Radiohead') ('little by little', 'Radiohead') 5 True\n",
+      "('sea of time', 'George Martin') ('yellow submarine in pepperland', 'George Martin') 25 True\n",
+      "('faraway eyes', 'The Rolling Stones') ('far away eyes', 'The Rolling Stones') 1 True\n",
+      "('i will los angeles version', 'Radiohead') ('wish you were here', 'Radiohead') 16 False\n",
+      "('everybody needs somebody to love finale', 'The Rolling Stones') ('everybody needs somebody to love', 'The Rolling Stones') 7 True\n",
+      "('a punch up at a wedding', 'Radiohead') ('a punchup at a wedding', 'Radiohead') 1 False\n",
+      "('revolution 1', 'The Beatles') ('revolution 9', 'The Beatles') 1 True\n",
+      "('untitled', 'Radiohead') ('untogether', 'Radiohead') 5 False\n",
+      "('when im sixty four', 'The Beatles') ('when im sixtyfour', 'The Beatles') 1 False\n"
+     ]
     }
    ],
    "source": [
-    "tracks.find_one({'sentiment': {'$exists': True}}).keys()"
+    "banned_substrings = ['rmx', 'remix', 'rework', 'live', 'intro', 'medley']\n",
+    "genius_and_both = genius_only | in_both\n",
+    "for s in spotify_only:\n",
+    "    if not any(banned in s[0] for banned in banned_substrings):\n",
+    "        candidates = [g for g in genius_and_both if g[1] == s[1]]\n",
+    "        if candidates:\n",
+    "            gt = min(candidates, key=lambda g: levenshtein(s[0], g[0]))\n",
+    "            d = levenshtein(s[0], gt[0])\n",
+    "        else:\n",
+    "            gt = 'Missing'\n",
+    "            d = 99999\n",
+    "        print(s, gt, d, gt in in_both)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 83,
+   "execution_count": 52,
    "metadata": {},
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "{'_id': '2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'acousticness': 0.425,\n",
-       " 'album': {'album_type': 'album',\n",
-       "  'artists': [{'external_urls': {'spotify': 'https://open.spotify.com/artist/3WrFJ7ztbogyGnTHbHJFl2'},\n",
-       "    'href': 'https://api.spotify.com/v1/artists/3WrFJ7ztbogyGnTHbHJFl2',\n",
-       "    'id': '3WrFJ7ztbogyGnTHbHJFl2',\n",
-       "    'name': 'The Beatles',\n",
-       "    'type': 'artist',\n",
-       "    'uri': 'spotify:artist:3WrFJ7ztbogyGnTHbHJFl2'}],\n",
-       "  'available_markets': ['AD',\n",
-       "   'AR',\n",
-       "   'AT',\n",
-       "   'AU',\n",
-       "   'BE',\n",
-       "   'BG',\n",
-       "   'BO',\n",
-       "   'BR',\n",
-       "   'CH',\n",
-       "   'CL',\n",
-       "   'CO',\n",
-       "   'CR',\n",
-       "   'CY',\n",
-       "   'CZ',\n",
-       "   'DE',\n",
-       "   'DK',\n",
-       "   'DO',\n",
-       "   'EC',\n",
-       "   'EE',\n",
-       "   'ES',\n",
-       "   'FI',\n",
-       "   'FR',\n",
-       "   'GB',\n",
-       "   'GR',\n",
-       "   'GT',\n",
-       "   'HK',\n",
-       "   'HN',\n",
-       "   'HU',\n",
-       "   'ID',\n",
-       "   'IE',\n",
-       "   'IS',\n",
-       "   'IT',\n",
-       "   'JP',\n",
-       "   'LI',\n",
-       "   'LT',\n",
-       "   'LU',\n",
-       "   'LV',\n",
-       "   'MC',\n",
-       "   'MT',\n",
-       "   'MY',\n",
-       "   'NI',\n",
-       "   'NL',\n",
-       "   'NO',\n",
-       "   'NZ',\n",
-       "   'PA',\n",
-       "   'PE',\n",
-       "   'PH',\n",
-       "   'PL',\n",
-       "   'PT',\n",
-       "   'PY',\n",
-       "   'SE',\n",
-       "   'SG',\n",
-       "   'SK',\n",
-       "   'SV',\n",
-       "   'TR',\n",
-       "   'TW',\n",
-       "   'UY'],\n",
-       "  'external_urls': {'spotify': 'https://open.spotify.com/album/03Qh833fEdVT30Pfs93ea6'},\n",
-       "  'href': 'https://api.spotify.com/v1/albums/03Qh833fEdVT30Pfs93ea6',\n",
-       "  'id': '03Qh833fEdVT30Pfs93ea6',\n",
-       "  'images': [{'height': 640,\n",
-       "    'url': 'https://i.scdn.co/image/d6028aea974c75961cb9cdc2263f5d8a8a6582bd',\n",
-       "    'width': 640},\n",
-       "   {'height': 300,\n",
-       "    'url': 'https://i.scdn.co/image/adebae7bf6a4a441bc6a5a17ca840f77df6ed3b9',\n",
-       "    'width': 300},\n",
-       "   {'height': 64,\n",
-       "    'url': 'https://i.scdn.co/image/3b0ddfadf13b9f3e74da93fcb21e4183a4d9fcc8',\n",
-       "    'width': 64}],\n",
-       "  'name': 'The Beatles (Remastered)',\n",
-       "  'type': 'album',\n",
-       "  'uri': 'spotify:album:03Qh833fEdVT30Pfs93ea6'},\n",
-       " 'album_id': '03Qh833fEdVT30Pfs93ea6',\n",
-       " 'analysis_url': 'https://api.spotify.com/v1/audio-analysis/2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'artist_id': '3WrFJ7ztbogyGnTHbHJFl2',\n",
-       " 'artist_name': 'The Beatles',\n",
-       " 'artists': [{'external_urls': {'spotify': 'https://open.spotify.com/artist/3WrFJ7ztbogyGnTHbHJFl2'},\n",
-       "   'href': 'https://api.spotify.com/v1/artists/3WrFJ7ztbogyGnTHbHJFl2',\n",
-       "   'id': '3WrFJ7ztbogyGnTHbHJFl2',\n",
-       "   'name': 'The Beatles',\n",
-       "   'type': 'artist',\n",
-       "   'uri': 'spotify:artist:3WrFJ7ztbogyGnTHbHJFl2'}],\n",
-       " 'available_markets': ['AD',\n",
-       "  'AR',\n",
-       "  'AT',\n",
-       "  'AU',\n",
-       "  'BE',\n",
-       "  'BG',\n",
-       "  'BO',\n",
-       "  'BR',\n",
-       "  'CH',\n",
-       "  'CL',\n",
-       "  'CO',\n",
-       "  'CR',\n",
-       "  'CY',\n",
-       "  'CZ',\n",
-       "  'DE',\n",
-       "  'DK',\n",
-       "  'DO',\n",
-       "  'EC',\n",
-       "  'EE',\n",
-       "  'ES',\n",
-       "  'FI',\n",
-       "  'FR',\n",
-       "  'GB',\n",
-       "  'GR',\n",
-       "  'GT',\n",
-       "  'HK',\n",
-       "  'HN',\n",
-       "  'HU',\n",
-       "  'ID',\n",
-       "  'IE',\n",
-       "  'IS',\n",
-       "  'IT',\n",
-       "  'JP',\n",
-       "  'LI',\n",
-       "  'LT',\n",
-       "  'LU',\n",
-       "  'LV',\n",
-       "  'MC',\n",
-       "  'MT',\n",
-       "  'MY',\n",
-       "  'NI',\n",
-       "  'NL',\n",
-       "  'NO',\n",
-       "  'NZ',\n",
-       "  'PA',\n",
-       "  'PE',\n",
-       "  'PH',\n",
-       "  'PL',\n",
-       "  'PT',\n",
-       "  'PY',\n",
-       "  'SE',\n",
-       "  'SG',\n",
-       "  'SK',\n",
-       "  'SV',\n",
-       "  'TR',\n",
-       "  'TW',\n",
-       "  'UY'],\n",
-       " 'ctitle': 'wild honey pie',\n",
-       " 'danceability': 0.792,\n",
-       " 'disc_number': 1,\n",
-       " 'duration_ms': 52973,\n",
-       " 'energy': 0.763,\n",
-       " 'explicit': False,\n",
-       " 'external_ids': {'isrc': 'GBAYE0601648'},\n",
-       " 'external_urls': {'spotify': 'https://open.spotify.com/track/2ucFulEWapRAmTn7l6f5Q7'},\n",
-       " 'href': 'https://api.spotify.com/v1/tracks/2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'id': '2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'instrumentalness': 0.627,\n",
-       " 'key': 2,\n",
-       " 'liveness': 0.789,\n",
-       " 'loudness': -11.185,\n",
-       " 'lyrical_density': 0.16989787250108546,\n",
-       " 'lyrics': 'honey pie honey pie i love you, honey pie',\n",
-       " 'mode': 1,\n",
-       " 'name': 'Wild Honey Pie - Remastered 2009',\n",
-       " 'original_lyrics': '\\n\\nHoney Pie\\nHoney Pie\\nI love you, Honey Pie\\n\\n',\n",
-       " 'popularity': 41,\n",
-       " 'preview_url': 'https://p.scdn.co/mp3-preview/ddebab4d5e87d46a499ce557405cfadf0330bd9c?cid=null',\n",
-       " 'sentiment': {'label': 'pos',\n",
-       "  'probability': {'neg': 0.39117763475308887,\n",
-       "   'neutral': 0.18873615212514983,\n",
-       "   'pos': 0.6088223652469111}},\n",
-       " 'speechiness': 0.0506,\n",
-       " 'tempo': 89.9,\n",
-       " 'time_signature': 4,\n",
-       " 'track_href': 'https://api.spotify.com/v1/tracks/2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'track_number': 5,\n",
-       " 'type': 'audio_features',\n",
-       " 'uri': 'spotify:track:2ucFulEWapRAmTn7l6f5Q7',\n",
-       " 'valence': 0.153}"
-      ]
-     },
-     "execution_count": 83,
-     "metadata": {},
-     "output_type": "execute_result"
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('charlies intro to little red rooster', 'The Rolling Stones') []\n",
+      "('bloom jamie xx rework', 'Radiohead') []\n",
+      "('sea of monsters', 'George Martin') []\n",
+      "('just my imagination', 'The Rolling Stones') []\n",
+      "('jumping jack flash', 'The Rolling Stones') [(('jumpin jack flash', 'The Rolling Stones'), 1)]\n",
+      "('pepperland laid waste', 'George Martin') []\n",
+      "('little ta', 'The Rolling Stones') [(('title 5', 'The Rolling Stones'), 4), (('little t a', 'The Rolling Stones'), 1), (('little rain', 'The Rolling Stones'), 3), (('little baby', 'The Rolling Stones'), 3)]\n",
+      "('kansas city heyheyheyhey', 'The Beatles') []\n",
+      "('bullet proof i wish i was', 'Radiohead') [(('bullet proofi wish i was', 'Radiohead'), 1)]\n",
+      "('sea of holes', 'George Martin') []\n",
+      "('packt like sardines in a crushed tin box', 'Radiohead') [(('packt like sardines in a crushd tin box', 'Radiohead'), 1)]\n",
+      "('codex illum sphere', 'Radiohead') []\n",
+      "('pepperland', 'George Martin') []\n",
+      "('key to the highway', 'The Rolling Stones') []\n",
+      "('march of the meanies', 'George Martin') []\n",
+      "('band introductions', 'The Rolling Stones') []\n",
+      "('dollars cents', 'Radiohead') [(('dollars and cents', 'Radiohead'), 4)]\n",
+      "('little by little shed', 'Radiohead') []\n",
+      "('sea of time', 'George Martin') []\n",
+      "('faraway eyes', 'The Rolling Stones') [(('far away eyes', 'The Rolling Stones'), 1)]\n",
+      "('i will los angeles version', 'Radiohead') []\n",
+      "('everybody needs somebody to love finale', 'The Rolling Stones') []\n",
+      "('a punch up at a wedding', 'Radiohead') [(('a punchup at a wedding', 'Radiohead'), 1)]\n",
+      "('martin scorsese intro', 'The Rolling Stones') []\n",
+      "('revolution 1', 'The Beatles') [(('revolution 9', 'The Beatles'), 1), (('revolution', 'The Beatles'), 2), (('revolution i', 'The Beatles'), 1)]\n",
+      "('untitled', 'Radiohead') []\n",
+      "('when im sixty four', 'The Beatles') [(('when im sixtyfour', 'The Beatles'), 1)]\n"
+     ]
     }
    ],
    "source": [
-    "tracks.find_one({'sentiment': {'$exists': True}})"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Analysis<a name=\"analysis\"></a>\n",
-    "Finally, we can get to the analysis of the data!\n",
-    "\n",
-    "First, what are the lowest-valence songs, and what's the distribution of valences?\n",
-    "\n",
-    "* [Top](#top)"
+    "genius_and_both = genius_only | in_both\n",
+    "for s in spotify_only:\n",
+    "    if 'rmx' not in s[0] and 'remix' not in s[0] and 'live' not in s[0]:\n",
+    "        album = \n",
+    "        candidates = [g for g in genius_and_both if g[1] == s[1]]\n",
+    "        if candidates:\n",
+    "            gts = [(g, levenshtein(s[0], g[0])) for g in candidates if levenshtein(s[0], g[0]) < 5]\n",
+    "            print(s, gts)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 84,
-   "metadata": {},
+   "execution_count": 54,
+   "metadata": {
+    "scrolled": true
+   },
    "outputs": [
     {
      "data": {
       "text/html": [
        "<div>\n",
+       "<style>\n",
+       "    .dataframe thead tr:only-child th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: left;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "</style>\n",
        "<table border=\"1\" class=\"dataframe\">\n",
        "  <thead>\n",
        "    <tr style=\"text-align: right;\">\n",
        "      <th>_id</th>\n",
        "      <th>artist_name</th>\n",
        "      <th>name</th>\n",
-       "      <th>valence</th>\n",
        "    </tr>\n",
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
        "      <th>0</th>\n",
-       "      <td>1AVrv7FD10FoKW38oBiKRg</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Bloom (Blawan Rmx)</td>\n",
-       "      <td>0.0325</td>\n",
+       "      <td>5XfJmldgWzrc1AIdbBaVZn</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Live At The Hollywood Bowl</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
-       "      <td>4rkGGQEqxHIXVJ4oXjOHgF</td>\n",
-       "      <td>George Martin</td>\n",
-       "      <td>Sea Of Holes - Remastered 2009</td>\n",
-       "      <td>0.0352</td>\n",
+       "      <td>5ju5Ouzan3QwXqQt1Tihbh</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>1 (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
-       "      <td>01ZpFhrMMqKPVCwyqXneVp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>True Love Waits</td>\n",
-       "      <td>0.0378</td>\n",
+       "      <td>2pCqZLeavM2BMovJXsJEIV</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Let It Be (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
-       "      <td>53RYTfkLiyZuUZHwJC3Wmm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>We Suck Young Blood</td>\n",
-       "      <td>0.0378</td>\n",
+       "      <td>2Pqkn9Dq2DFtdfkKAeqgMd</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Abbey Road (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
+       "      <td>47bcKzmKgmMPHXNVOWpLiu</td>\n",
        "      <td>The Beatles</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.0380</td>\n",
+       "      <td>Yellow Submarine (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>5</th>\n",
-       "      <td>66Pyms4pYaHEcPHZ7DdMbE</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>TKOL (Altrice Rmx)</td>\n",
-       "      <td>0.0383</td>\n",
+       "      <td>03Qh833fEdVT30Pfs93ea6</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>The Beatles (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>6</th>\n",
-       "      <td>3gKuywOm38axM8sJGq6Laq</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>MK 1</td>\n",
-       "      <td>0.0391</td>\n",
+       "      <td>6P9yO0ukhOx3dvmhGKeYoC</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Magical Mystery Tour (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>7</th>\n",
-       "      <td>75YUnz58ajMo2VIIuUFvOV</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The Tourist</td>\n",
-       "      <td>0.0400</td>\n",
+       "      <td>1PULmKbHeOqlkIwcDMNwD4</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Sgt. Pepper's Lonely Hearts Club Band (Remaste...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>8</th>\n",
-       "      <td>0tKuiKb2mazZYdA6fPP7kI</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Good Evening Mrs Magpie (Modeselektor RMX)</td>\n",
-       "      <td>0.0413</td>\n",
+       "      <td>0PYyrqs9NXtxPhf0CZkq2L</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Revolver (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>9</th>\n",
-       "      <td>2PbwmAMaxIBIWis8XLViat</td>\n",
-       "      <td>George Martin</td>\n",
-       "      <td>Sea Of Monsters - Remastered 2009</td>\n",
-       "      <td>0.0422</td>\n",
+       "      <td>3OdI6e43crvyAHhaqpxSyz</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Rubber Soul (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>10</th>\n",
-       "      <td>0COiZ7ncho2yi4HotbzgPv</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Motion Picture Soundtrack</td>\n",
-       "      <td>0.0425</td>\n",
+       "      <td>19K3IHYeVkUTjcBHGfbCOi</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Help! (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>11</th>\n",
-       "      <td>2uYSbsxAMmK1awUl06T7ix</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>MK 2</td>\n",
-       "      <td>0.0437</td>\n",
+       "      <td>7BgGBZndAvDlKOcwe5rscZ</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Beatles For Sale (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>12</th>\n",
-       "      <td>4gq2bc2770XvbJdEtfUbmw</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Go Slowly</td>\n",
-       "      <td>0.0453</td>\n",
+       "      <td>71Mwd9tntFQYUk4k2DwA0D</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>A Hard Day's Night (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>13</th>\n",
-       "      <td>5olWalQH1oVza5D6xJg4oX</td>\n",
+       "      <td>1DBkJIEoeHrTX4WCBQGcCi</td>\n",
        "      <td>Radiohead</td>\n",
-       "      <td>Sail To The Moon</td>\n",
-       "      <td>0.0458</td>\n",
+       "      <td>The King Of Limbs</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>14</th>\n",
-       "      <td>49JPfRfsAfjWYRN6lbC3my</td>\n",
-       "      <td>George Martin</td>\n",
-       "      <td>Pepperland Laid Waste - Remastered 2009</td>\n",
-       "      <td>0.0459</td>\n",
+       "      <td>3nkEsxmIX0zRNXGAexaHAn</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>With The Beatles (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>15</th>\n",
-       "      <td>3uxhyRdWVXp7GQvERQl6fA</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Videotape</td>\n",
-       "      <td>0.0468</td>\n",
+       "      <td>7gDXyW16byCQOgK965BRzn</td>\n",
+       "      <td>The Beatles</td>\n",
+       "      <td>Please Please Me (Remastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>16</th>\n",
-       "      <td>29yXMFKIrY1fFY4DYBVZCu</td>\n",
+       "      <td>6vuykQgDLUCiZ7YggIpLM9</td>\n",
        "      <td>Radiohead</td>\n",
-       "      <td>Life In a Glasshouse</td>\n",
-       "      <td>0.0516</td>\n",
+       "      <td>A Moon Shaped Pool</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>17</th>\n",
-       "      <td>3cual6JOG286qZJmCxKRAT</td>\n",
+       "      <td>47xaqCsJcYFWqD1gwujl1T</td>\n",
        "      <td>Radiohead</td>\n",
-       "      <td>Tinker Tailor Soldier Sailor Rich Man Poor Man...</td>\n",
-       "      <td>0.0517</td>\n",
+       "      <td>TKOL RMX 1234567</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>18</th>\n",
-       "      <td>6f6pEjgfTtuRROmJ4a7Gf3</td>\n",
+       "      <td>7eyQXxuf2nGj9d2367Gi5f</td>\n",
        "      <td>Radiohead</td>\n",
-       "      <td>The Numbers</td>\n",
-       "      <td>0.0545</td>\n",
+       "      <td>In Rainbows</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>19</th>\n",
-       "      <td>0agoaPIy92gPZ6zRhqXarE</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Tomorrow Never Knows - Remastered 2009</td>\n",
-       "      <td>0.0556</td>\n",
+       "      <td>36lJLPoPPOKNFddTAcirnc</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>In Rainbows Disk 2</td>\n",
        "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                       _id    artist_name  \\\n",
-       "0   1AVrv7FD10FoKW38oBiKRg      Radiohead   \n",
-       "1   4rkGGQEqxHIXVJ4oXjOHgF  George Martin   \n",
-       "2   01ZpFhrMMqKPVCwyqXneVp      Radiohead   \n",
-       "3   53RYTfkLiyZuUZHwJC3Wmm      Radiohead   \n",
-       "4   0ttMfoND7IQqFSMVOPkELC    The Beatles   \n",
-       "5   66Pyms4pYaHEcPHZ7DdMbE      Radiohead   \n",
-       "6   3gKuywOm38axM8sJGq6Laq      Radiohead   \n",
-       "7   75YUnz58ajMo2VIIuUFvOV      Radiohead   \n",
-       "8   0tKuiKb2mazZYdA6fPP7kI      Radiohead   \n",
-       "9   2PbwmAMaxIBIWis8XLViat  George Martin   \n",
-       "10  0COiZ7ncho2yi4HotbzgPv      Radiohead   \n",
-       "11  2uYSbsxAMmK1awUl06T7ix      Radiohead   \n",
-       "12  4gq2bc2770XvbJdEtfUbmw      Radiohead   \n",
-       "13  5olWalQH1oVza5D6xJg4oX      Radiohead   \n",
-       "14  49JPfRfsAfjWYRN6lbC3my  George Martin   \n",
-       "15  3uxhyRdWVXp7GQvERQl6fA      Radiohead   \n",
-       "16  29yXMFKIrY1fFY4DYBVZCu      Radiohead   \n",
-       "17  3cual6JOG286qZJmCxKRAT      Radiohead   \n",
-       "18  6f6pEjgfTtuRROmJ4a7Gf3      Radiohead   \n",
-       "19  0agoaPIy92gPZ6zRhqXarE    The Beatles   \n",
-       "\n",
-       "                                                 name  valence  \n",
-       "0                                  Bloom (Blawan Rmx)   0.0325  \n",
-       "1                      Sea Of Holes - Remastered 2009   0.0352  \n",
-       "2                                     True Love Waits   0.0378  \n",
-       "3                                 We Suck Young Blood   0.0378  \n",
-       "4                      Blue Jay Way - Remastered 2009   0.0380  \n",
-       "5                                  TKOL (Altrice Rmx)   0.0383  \n",
-       "6                                                MK 1   0.0391  \n",
-       "7                                         The Tourist   0.0400  \n",
-       "8          Good Evening Mrs Magpie (Modeselektor RMX)   0.0413  \n",
-       "9                   Sea Of Monsters - Remastered 2009   0.0422  \n",
-       "10                          Motion Picture Soundtrack   0.0425  \n",
-       "11                                               MK 2   0.0437  \n",
-       "12                                          Go Slowly   0.0453  \n",
-       "13                                   Sail To The Moon   0.0458  \n",
-       "14            Pepperland Laid Waste - Remastered 2009   0.0459  \n",
-       "15                                          Videotape   0.0468  \n",
-       "16                               Life In a Glasshouse   0.0516  \n",
-       "17  Tinker Tailor Soldier Sailor Rich Man Poor Man...   0.0517  \n",
-       "18                                        The Numbers   0.0545  \n",
-       "19             Tomorrow Never Knows - Remastered 2009   0.0556  "
-      ]
-     },
-     "execution_count": 84,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pd.DataFrame(list(tracks.find({}, \n",
-    "                              ['artist_name', 'name', 'valence'], \n",
-    "                              sort=[('valence', pymongo.ASCENDING)], limit=20)))"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Just the Beatles songs."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 85,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>valence</th>\n",
+       "    <tr>\n",
+       "      <th>20</th>\n",
+       "      <td>6Eo5EkmdLvZrONzi046iC2</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>Com Lag: 2+2=5</td>\n",
        "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
        "    <tr>\n",
-       "      <th>113</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.0380</td>\n",
+       "      <th>21</th>\n",
+       "      <td>1oW3v5Har9mvXnGk0x4fHm</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>Hail To the Thief</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>147</th>\n",
-       "      <td>0agoaPIy92gPZ6zRhqXarE</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Tomorrow Never Knows - Remastered 2009</td>\n",
-       "      <td>0.0556</td>\n",
+       "      <th>22</th>\n",
+       "      <td>6svTt5o2lUgIrgYDKVmdnD</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>I Might Be Wrong</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>109</th>\n",
-       "      <td>6ZrPbHp9kRmQj1tGLvna8U</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Revolution 9 - Remastered 2009</td>\n",
-       "      <td>0.0963</td>\n",
+       "      <th>23</th>\n",
+       "      <td>6V9YnBmFjWmXCBaUVRCVXP</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>Amnesiac</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>104</th>\n",
-       "      <td>27YZJHyTTDIurMqDu1v2ef</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Long, Long, Long - Remastered 2009</td>\n",
-       "      <td>0.1350</td>\n",
+       "      <th>24</th>\n",
+       "      <td>19RUXBFyM4PpmrLRdtqWbp</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>Kid A</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>2ucFulEWapRAmTn7l6f5Q7</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Wild Honey Pie - Remastered 2009</td>\n",
-       "      <td>0.1530</td>\n",
+       "      <th>25</th>\n",
+       "      <td>7dxKtc08dYeRVHt3p9CZJn</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>OK Computer</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>66</th>\n",
-       "      <td>4cLoL5KPfE1hAwfsO84FX7</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Because - Remastered 2009</td>\n",
-       "      <td>0.1620</td>\n",
+       "      <th>26</th>\n",
+       "      <td>500FEaUzn8lN9zWFyZG5C2</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>The Bends</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>133</th>\n",
-       "      <td>3ZFBeIyP41HhnALjxWy1pR</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>A Day In The Life - Remastered 2009</td>\n",
-       "      <td>0.1620</td>\n",
+       "      <th>27</th>\n",
+       "      <td>6400dnyeDyD2mIFHfkwHXN</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td>Pablo Honey</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>44</th>\n",
-       "      <td>7iABnSNZciNepqGtjMQxxd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Come Together - Remastered 2015</td>\n",
-       "      <td>0.1780</td>\n",
+       "      <th>28</th>\n",
+       "      <td>4g9Jfls8z2nbQxj5PiXkiy</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Blue &amp; Lonesome</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>59</th>\n",
-       "      <td>0MKqeOVdZcUFGJvWpGCKbG</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Come Together - Remastered 2009</td>\n",
-       "      <td>0.1790</td>\n",
+       "      <th>29</th>\n",
+       "      <td>4fhWcu56Bbh5wALuTouFVW</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Havana Moon (Live)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>110</th>\n",
-       "      <td>2tf8ljpWPmXNIFgRVhEuJg</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Good Night - Remastered 2009</td>\n",
-       "      <td>0.1920</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  \\\n",
-       "113  0ttMfoND7IQqFSMVOPkELC  The Beatles   \n",
-       "147  0agoaPIy92gPZ6zRhqXarE  The Beatles   \n",
-       "109  6ZrPbHp9kRmQj1tGLvna8U  The Beatles   \n",
-       "104  27YZJHyTTDIurMqDu1v2ef  The Beatles   \n",
-       "0    2ucFulEWapRAmTn7l6f5Q7  The Beatles   \n",
-       "66   4cLoL5KPfE1hAwfsO84FX7  The Beatles   \n",
-       "133  3ZFBeIyP41HhnALjxWy1pR  The Beatles   \n",
-       "44   7iABnSNZciNepqGtjMQxxd  The Beatles   \n",
-       "59   0MKqeOVdZcUFGJvWpGCKbG  The Beatles   \n",
-       "110  2tf8ljpWPmXNIFgRVhEuJg  The Beatles   \n",
-       "\n",
-       "                                       name  valence  \n",
-       "113          Blue Jay Way - Remastered 2009   0.0380  \n",
-       "147  Tomorrow Never Knows - Remastered 2009   0.0556  \n",
-       "109          Revolution 9 - Remastered 2009   0.0963  \n",
-       "104      Long, Long, Long - Remastered 2009   0.1350  \n",
-       "0          Wild Honey Pie - Remastered 2009   0.1530  \n",
-       "66                Because - Remastered 2009   0.1620  \n",
-       "133     A Day In The Life - Remastered 2009   0.1620  \n",
-       "44          Come Together - Remastered 2015   0.1780  \n",
-       "59          Come Together - Remastered 2009   0.1790  \n",
-       "110            Good Night - Remastered 2009   0.1920  "
-      ]
-     },
-     "execution_count": 85,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "beatles_df = pd.DataFrame(list(tracks.find({'artist_id': beatles_id}, \n",
-    "                              ['artist_name', 'name', 'valence'])))\n",
-    "beatles_df.sort_values('valence').head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "And plot the valences.."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 86,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7f622af36c88>"
-      ]
-     },
-     "execution_count": 86,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
-    {
-     "data": {
-      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAXUAAAEACAYAAABMEua6AAAABHNCSVQICAgIfAhkiAAAAAlwSFlz\nAAALEgAACxIB0t1+/AAAEz1JREFUeJzt3X2MbHddx/H3t15o0VJueeoWW7oSSov4sGBS6kNkeAhQ\nFQqJRUjArlZFg0okMbT80xASY/8gEIOIiYV7EUlBkLYI2kIuBySIgKXQQClVuX0AuzyUS1ONtOV+\n/WPm7izbuTtnd2bO78w571cyyZy5M/v7nm/Ofu/Zz8zZjcxEktQNJ5QuQJI0Pw51SeoQh7okdYhD\nXZI6xKEuSR3iUJekDtlX50kRcRj4HnAUuD8zz4uIU4H3AGcBh4GXZOb3FlSnJKmGumfqR4FBZj41\nM88bPXYp8NHMPAc4BFy2iAIlSfXVHeox4bkXAgdH9w8CL5pXUZKkvak71BO4LiI+GxG/M3rstMzc\nAMjMu4DHLKJASVJ9tTJ14Bcy866IeAxwfUTcwnDQS5JapNZQH52Jk5nfioirgfOAjYg4LTM3ImIF\n+Oak10aEw1+S9iAzY7evmRq/RMSPRsTJo/s/BjwXuAm4FlgfPe1i4JodCvOWyeWXX168hrbc7IW9\nsBc73/aqzpn6acAHRmfc+4C/y8zrI+JzwHsj4reB24GL9lxFTxw+fLh0Ca1hL8bsxZi9mN3UoZ6Z\nXwPWJjx+N/CcRRQlSdobryht0Pr6eukSWsNejNmLMXsxu5glu6m1QEQueg1J6pqIIBfxRqnmp6qq\n0iW0hr0Ysxdj9mJ2DnVJ6hDjF0lqIeMXSZJDvUnmhWP2YsxejNmL2TnUJalDzNQlqYXM1CVJDvUm\nmReO2YsxezFmL2bnUJekDjFTl6QWMlOXltTKyioRUeS2srJaevc1Zw71BpkXjtmLsY2N2xj+dcjm\nb8O128PjYnYOdUnqEDN1qbCIoNzfcY+Z/nSaFsdMXZLkUG+SeeGYvdAkHhezc6hLUoeYqUuFmalr\nEjN1SZJDvUnmhWP2QpM0eVx09aKvfQv7ypLUYuOLvkqsvetUpTYzdakwM/Uy2t53M3VJkkO9SebI\nY/ZCk3hczM6hLkkdYqYuFdb2bLer2t53M3VJkkO9SeaFY/ZCk3hczM6hLkkdYqYuFdb2bLer2t53\nM3VJkkO9SeaFY/ZCk3hczM6hLkkdUjtTj4gTgM8Bd2bmCyNiFbgKOBW4AXhFZj4w4XVm6tIO2p7t\ndlXb+95Epv5q4Mtbtq8A3piZ5wBHgEt2u7gkab5qDfWIOAP4FeBvtjz8LOD9o/sHgRfPt7TuMS8c\nsxeaxONidnXP1N8E/Cmjn1Ui4lHAdzPz6Ojf7wQeN//yJEm7MfWPZETErwIbmXljRAyOPTy6bXXc\ngGh9fZ3V1VUA9u/fz9raGoPB8Esd+5+5D9uDwaBV9bjdnu2xY9uDhraHNZTe/2PbTdfTfL+PbfOg\neqqq4sCBAwCb83Ivpr5RGhF/BrwceAB4GPBw4GrgucBKZh6NiPOByzPzggmv941SaQdtf8Ouq9re\n94W9UZqZr8vMx2fmE4CXAocy8+XAx4CLRk+7GLhmt4v3zYPPyvrLXmgSj4vZzfI59UuB10TEV4FH\nAlfOpyRJ0l75u1+kwtoeA3RV2/vu736RJDnUm2ReOGYvNInHxewc6pLUIWbqUmFtz3a7qu19N1OX\nJDnUm2ReOGYvNInHxewc6pLUIWbqUmFtz3a7qu19N1OXJDnUm2ReOGYvNInHxewc6pLUIWbqUmFt\nz3a7qu19N1OXJDnUm2ReOGYvNInHxewc6pLUIWbqUmFtz3a7qu19N1OXJDnUm2ReOGYvNInHxez2\nlS5AUn+trKyysXFb6TI6xUxdKqzt2e5CVy+8723uu5m6JMmh3iTzwjF7ocmq0gUsPYe6JHWImbpU\nWOlc2Uy9zNpm6pKkqRzqDTJHHrMXmqwqXcDSc6hLUoeYqUuFlc6VzdTLrG2mLkmayqHeIHPkMXuh\nyarSBSw9h7okdYiZulRY6VzZTL3M2mbqkqSpHOoNMkcesxearCpdwNJzqEtSh0zN1CPiROATwEMZ\n/lGN92Xm6yNiFbgKOBW4AXhFZj4w4fVm6tIOSufKZupl1i6WqWfm94FnZuZTgTXggoh4OnAF8MbM\nPAc4Alyy28UlSfNVK37JzP8d3T2R4dl6As8E3j96/CDw4rlX1zHmyGP2QpNVpQtYerWGekScEBGf\nB+4CPgL8J3AkM4+OnnIn8LjFlChJqmtXn1OPiFOADwCXA2/PzCeNHj8D+FBm/uyE15ipSzsonSub\nqZdZe1GZ+r7dPDkz74mIjwPnA/sj4oTR2foZwDeO97r19XVWV1cB2L9/P2trawwGA2D8Y7jbbvd5\ne+zY9qCh7YeMBmtJFc3tb1u2R1tbjoeqqjhw4ADA5rzcizqffnk0cH9mfi8iHgZcB/w5cDHwD5n5\nnoj4K+ALmfm2Ca/3TH2kqqrNb+a+sxdj/T1bnbR+xXgANr12k8qeqZ8OHIyIExhm8O/JzA9HxM3A\nVRHxBuDzwJW7XVySNF/+7hepMM/U+7jv/u4XSVINDvUG+dnsMXuhyarSBSw9h7okdYiZulSYmXof\n991MXZJUg0O9QebIY/ZCk1WlC1h6DnVJ6hAzdakwM/U+7ruZuiSpBod6g8yRx+yFJqtKF7D0HOqS\n1CFm6lJhZup93HczdUlSDQ71Bpkjj9kLTVaVLmDpOdQlqUPM1KXCzNT7uO9m6pKkGhzqDTJHHrMX\nmqwqXcDSc6hLUoeYqUuFman3cd/N1CVJNTjUG2SOPGYvNFlVuoCl51CXpA4xU5cKM1Pv476bqUuS\nanCoN8gcecxeaLKqdAFLz6EuSR1ipi4VZqbex303U5ck1eBQb5A58pi90GRV6QKWnkNdkjrETF0q\nzEy9j/tupi5JqsGh3iBz5DF7ocmq0gUsPYe6JHWImbpUmJl6H/e9YKYeEWdExKGI+HJE3BQRfzx6\n/NSIuD4ibomI6yLiEbtdXJI0X3XilweA12TmTwI/D7wqIs4FLgU+mpnnAIeAyxZXZjeYI4/ZC01W\nlS5g6U0d6pl5V2beOLp/L3AzcAZwIXBw9LSDwIsWVaQkqZ5dZeoRscrwv9KfAu7IzFO3/Nt3MvNR\nE15jpi7twEy9j/vegs+pR8TJwPuAV4/O2J3UktQy++o8KSL2MRzof5uZ14we3oiI0zJzIyJWgG8e\n7/Xr6+usrq4CsH//ftbW1hgMBsA4W+3D9tYcuQ31lNw+9lhb6im9PXZse9DQ9rHHmlpv2vpvBtYK\n1tPU9mhr23w4cOAAwOa83Ita8UtEvBP4dma+ZstjVwB3Z+YVEfFa4NTMvHTCa41fRqqq2vxm7jt7\nMWb8snX9ih8e+E2u3aTFxS9Th3pE/CLwCeAmhh1I4HXAZ4D3AmcCtwMXZeaRCa93qEs7cKj3cd8L\nDvVZOdSlnTnU+7jvLXijVLPzs9lj23uxsrJKRBS5raysFumBJqlKF7D0ar1RKi3axsZtlDpr2tjY\n9cmQ1FrGL2qF0hFEyWO09L4bv5RZ2/hFkjSVQ71BZupj9kKTVaULWHoOdUnqEDN1tULpXNlMvZS+\n7ruZuiSpBod6g8yRx+yFJqtKF7D0/Jy6Nq2srI4+Ly5pWZmpa1N/s10z9XL6uu9m6pKkGhzqDTJH\n3qoqXYBaqSpdwNIzU5c4cRSBSMvPTF2b+pvtmiuX09d9N1OXJNXgUG+QmfpWVekC1EpV6QKWnkNd\nkjrETF2bzNRLcd/7uLaZuiRpKod6g8zUt6pKF6BWqkoXsPQc6pLUIWbq2mSmXor73se1zdQlSVM5\n1Btkpr5VVboAtVJVuoCl51CXpA4xU9cmM/VS3Pc+rm2mLkmayqHeIDP1rarSBaiVqtIFLD2HuiR1\niJm6Npmpl+K+93FtM/WGrKysEhFFbisrq6V3X9KSc6hvs7FxG8P/vRdx+9iO/z5cuy+q0gWolarS\nBSw9h7okdYiZ+jalc+WSvSq97/1cu/T67nuptc3UJUlTTR3qEXFlRGxExBe3PHZqRFwfEbdExHUR\n8YjFltkVVekCWqQqXYBaqSpdwNKrc6b+DuB52x67FPhoZp4DHAIum3dhkqTdq5WpR8RZwAcz82dG\n218BnpGZGxGxAlSZee5xXmumXn91M/XerV16ffe91Npty9Qfm5kbAJl5F/CYPX4dSdIc7WtikfX1\ndVZXVwHYv38/a2trDAYDYPz7UNqyPVQBgy33mdP2sfvHf375/d/N/syyfeyxrdtNrj+pnj6uf+yx\nptabtv6bgbWC9TS1Pdra8v1XVRUHDhwA2JyXe7HX+OVmYLAlfvlYZj75OK81ftlU8cMH84NW71H8\nUvHDvejrj+Gl12/bvlfs/D2yyLWbVD5+idHtmGuB9dH9i4FrdrtwPw1KF9Aig9IFqJUGpQtYelPP\n1CPi3Qw7/ShgA7gcuBr4e+BM4Hbgosw8cpzXe6Zef/Uenak/aPWerl16ffe91NqLOlP3itJtjF+M\nX/q1ftv2vcL4ZfQMryiVJHmmvk3pCKI/Z+oPWr2na5de330vtbZn6pKkqRzqjapKF9AiVekC1EpV\n6QKWXiMXH6muE0cRiCTtjZn6Nv3NlUuv39e1S6/vvpda20xdkjSVQ71RVekCWqQqXYBaqSpdwNJz\nqEtSh5ipb2Om3sd9t+/l9HXfzdQlSTU41BtVlS6gRarSBaiVqtIFLD2HuiR1iJn6Nmbqfdx3+15O\nX/fdTF2SVINDvVFV6QJapCpdgFqpKl3A0nOoS1KHmKlvY6bex3237+X0dd/N1CVJNTjUG1WVLqBF\nqtIFqJWq0gUsPYe6JHWImfo2Zup93Hf7Xk5f991MXZJUg0O9UVXpAlqkKl2AWqkqXcDSc6hLUoe0\nLlO/9957uffeexdY0c5OP/10+pnxlV6/r2uXXt99L7X2ojL1fXuuaUHOPvunOXLkf4ho/oeI+++/\np/E1JWmeWjfU7777W9x3313AyY2vfdJJr+KBB966wBUqYLDAr79MKuyFHqzC42I2ZuqS1CEO9UYN\nShfQIoPSBaiVBqULWHoOdUnqEId6o6rSBbRIVboAtVJVuoCl51CXpA5xqDdqULqAFhmULkCtNChd\nwNJzqEtSh8w01CPi+RHxlYj4akS8dl5FdVdVuoAWqUoXoFaqShew9PY81GN4yedbgOcBTwFeFhHn\nzquwbrqxdAEtYi80icfFrGY5Uz8PuDUzb8vM+4GrgAvnU1ZXHSldQIvYC03icTGrWYb6jwN3bNm+\nc/SYJKmQWX73y6TfHjbzrzzbt+8hnHTSRZT4tTT33XfTglc4vOCvv0wOly5ArXS4dAFLb5bJeSfw\n+C3bZwDfmPTE4Z+I241/3mtNc7Lr33a5CwcLrl1Hk+tv70XJfe9T39u09qT1p32PLHLtBlfe9Vys\n+XX3+vvUI+JHgFuAZwP/DXwGeFlm3jy/8iRJu7HnM/XM/EFE/CFwPcNs/koHuiSVtfC/fCRJas7c\nriiddiFSRDw0Iq6KiFsj4l8j4vGTvs6yq9GHP4mIL0XEjRHxkYg4s0SdTah7cVpE/HpEHI2IpzVZ\nX5Pq9CIiXjI6Nm6KiHc1XWNTanyPnBkRhyLihtH3yQUl6mxCRFwZERsR8cUdnvMXo7l5Y0SsTf2i\nmTnzjeF/Dv8BnAU8hOEVBOdue84fAG8d3f8N4Kp5rN2mW80+PAM4aXT/97vYh7q9GD3vZODjwKeA\np5Wuu+Bx8UTg34FTRtuPLl13wV78NfDK0f0nA18rXfcC+/FLwBrwxeP8+wXAh0b3nw58etrXnNeZ\nep0LkS5k/Lb2+xi+wdo1U/uQmR/PzP8bbX6a7n62v+7FaW8ArgC+32RxDavTi98F/jIz7wHIzG83\nXGNT6vTiKHDK6P5+4OsN1teozPwk8N0dnnIh8M7Rc/8NeEREnLbT15zXUK9zIdLmczLzB8CRiHjk\nnNZvi91ekHUJ8E8Lraicqb0Y/Sh5RmZ+uMnCCqhzXDwJOCciPhkRn4qI5zVWXbPq9OL1wCsi4g7g\nH4E/aqi2Ntrer68z5URwXlf41LkQaftzYsJzll3tC7Ii4uXAzzGMY7pox17E8EO6bwIunvKaLqhz\nXOxjGMH8MsPrP/4lIp5y7My9Q+r04mXAOzLzTRFxPvAuhr9fqo92fZHnvM7U61yIdAdwJmx+xv2U\nzNzpx45lVOuCrIh4DnAZ8ILRj6BdNK0XD2f4jVpFxNeA84FrOvpmaZ3j4k7gmsw8mpmHGV4DcnYz\n5TWqTi8uAd4LkJmfBk6KiEc3U17r3Mlobo4c9yLPY+Y11D8LPDEizoqIhwIvBa7d9pwPMj4ruwg4\nNKe122RqHyLiqcDbgBdm5ncK1NiUHXuRmfdk5mMz8wmZ+RMM3194QWbeUKjeRarz/XE18CyA0QA7\nG/ivRqtsRp1e3AY8ByAingyc2OH3GGB4Nn68n1KvBX4TYPRTy5HM3Njxq83xXdznMzy7uBW4dPTY\n64FfG90/keH/vrcy/AZeLf3O84LezZ7Wh48wvAL3BuDzwNWlay7Vi23PPURHP/1StxfAG4EvAV8A\nLipdc6leMPzEyycZfjLmBuDZpWteYC/ezfDM+/vA7cBvAa8Efm/Lc97C8BNDX6jzPeLFR5LUIf45\nO0nqEIe6JHWIQ12SOsShLkkd4lCXpA5xqEtShzjUJalDHOqS1CH/Dw5okzVHHiyGAAAAAElFTkSu\nQmCC\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ac41668>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "beatles_df['valence'].hist()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 88,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7f622af5d588>"
-      ]
-     },
-     "execution_count": 88,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
-    {
-     "data": {
-      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAXUAAAEACAYAAABMEua6AAAABHNCSVQICAgIfAhkiAAAAAlwSFlz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\nYII=\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ac41748>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "radiohead_df['valence'].hist()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "And now plot both on the same chart, to clearly show that Radiohead songs are generally lower-valence than The Beatles."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 89,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7f622af4d8d0>"
-      ]
-     },
-     "execution_count": 89,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
-    {
-     "data": {
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-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622adf0908>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "beatles_df['valence'].hist(alpha=0.5, color='blue')\n",
-    "radiohead_df['valence'].hist(alpha=0.5, color='red')"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Sentiment<a name=\"sentiment\"></a>\n",
-    "We can now look at the sentiment scores for the lyrics. We start by looking at the most negative songs for each artist.\n",
-    "\n",
-    "* [Top](#top)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 90,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>neutral</th>\n",
-       "      <th>pos</th>\n",
-       "      <th>valence</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>88</th>\n",
-       "      <td>3VgxeWOGdUYvtX1j8C9VyV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>I'm So Tired - Remastered 2009</td>\n",
-       "      <td>0.892489</td>\n",
-       "      <td>0.146302</td>\n",
-       "      <td>0.107511</td>\n",
-       "      <td>0.6300</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>62</th>\n",
-       "      <td>6gLmFcRwyQCQT23Df2Re9G</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>I Want You (She's So Heavy) - Remastered 2009</td>\n",
-       "      <td>0.882642</td>\n",
-       "      <td>0.091819</td>\n",
-       "      <td>0.117358</td>\n",
-       "      <td>0.4160</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>107</th>\n",
-       "      <td>6ZrPbHp9kRmQj1tGLvna8U</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Revolution 9 - Remastered 2009</td>\n",
-       "      <td>0.873285</td>\n",
-       "      <td>0.172322</td>\n",
-       "      <td>0.126715</td>\n",
-       "      <td>0.0963</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>186</th>\n",
-       "      <td>3EbGioQyKyf4dycuiPOg3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Everybody's Trying To Be My Baby - Remastered ...</td>\n",
-       "      <td>0.866985</td>\n",
-       "      <td>0.914332</td>\n",
-       "      <td>0.133015</td>\n",
-       "      <td>0.9370</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16</th>\n",
-       "      <td>79QDgDoBbS7pCrOjIH7ByA</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Everybody’s Trying To Be My Baby - Live / Bonu...</td>\n",
-       "      <td>0.866985</td>\n",
-       "      <td>0.914332</td>\n",
-       "      <td>0.133015</td>\n",
-       "      <td>0.6390</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>53</th>\n",
-       "      <td>4311wT21Et0q3vepFwXjTu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>One After 909 - Remastered 2009</td>\n",
-       "      <td>0.865737</td>\n",
-       "      <td>0.158470</td>\n",
-       "      <td>0.134263</td>\n",
-       "      <td>0.9040</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>148</th>\n",
-       "      <td>3QbhVaulXxTyuAxHY3Pa5N</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>You Won't See Me - Remastered 2009</td>\n",
-       "      <td>0.864585</td>\n",
-       "      <td>0.247226</td>\n",
-       "      <td>0.135415</td>\n",
-       "      <td>0.4620</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>195</th>\n",
-       "      <td>3Aqo28W4LLAolYpN3duVJl</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>I'll Cry Instead - Remastered 2009</td>\n",
-       "      <td>0.863772</td>\n",
-       "      <td>0.160516</td>\n",
-       "      <td>0.136228</td>\n",
-       "      <td>0.9610</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>92</th>\n",
-       "      <td>3OSi8ehmSWLTD5KatlzX8r</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Don't Pass Me By - Remastered 2009</td>\n",
-       "      <td>0.857831</td>\n",
-       "      <td>0.120676</td>\n",
-       "      <td>0.142169</td>\n",
-       "      <td>0.9480</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>134</th>\n",
-       "      <td>3wAOX1N5M0ta3QNsokmhJV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>I'm Only Sleeping - Remastered 2009</td>\n",
-       "      <td>0.857651</td>\n",
-       "      <td>0.269800</td>\n",
-       "      <td>0.142349</td>\n",
-       "      <td>0.7000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  \\\n",
-       "88   3VgxeWOGdUYvtX1j8C9VyV  The Beatles   \n",
-       "62   6gLmFcRwyQCQT23Df2Re9G  The Beatles   \n",
-       "107  6ZrPbHp9kRmQj1tGLvna8U  The Beatles   \n",
-       "186  3EbGioQyKyf4dycuiPOg3k  The Beatles   \n",
-       "16   79QDgDoBbS7pCrOjIH7ByA  The Beatles   \n",
-       "53   4311wT21Et0q3vepFwXjTu  The Beatles   \n",
-       "148  3QbhVaulXxTyuAxHY3Pa5N  The Beatles   \n",
-       "195  3Aqo28W4LLAolYpN3duVJl  The Beatles   \n",
-       "92   3OSi8ehmSWLTD5KatlzX8r  The Beatles   \n",
-       "134  3wAOX1N5M0ta3QNsokmhJV  The Beatles   \n",
-       "\n",
-       "                                                  name       neg   neutral  \\\n",
-       "88                      I'm So Tired - Remastered 2009  0.892489  0.146302   \n",
-       "62       I Want You (She's So Heavy) - Remastered 2009  0.882642  0.091819   \n",
-       "107                     Revolution 9 - Remastered 2009  0.873285  0.172322   \n",
-       "186  Everybody's Trying To Be My Baby - Remastered ...  0.866985  0.914332   \n",
-       "16   Everybody’s Trying To Be My Baby - Live / Bonu...  0.866985  0.914332   \n",
-       "53                     One After 909 - Remastered 2009  0.865737  0.158470   \n",
-       "148                 You Won't See Me - Remastered 2009  0.864585  0.247226   \n",
-       "195                 I'll Cry Instead - Remastered 2009  0.863772  0.160516   \n",
-       "92                  Don't Pass Me By - Remastered 2009  0.857831  0.120676   \n",
-       "134                I'm Only Sleeping - Remastered 2009  0.857651  0.269800   \n",
-       "\n",
-       "          pos  valence  \n",
-       "88   0.107511   0.6300  \n",
-       "62   0.117358   0.4160  \n",
-       "107  0.126715   0.0963  \n",
-       "186  0.133015   0.9370  \n",
-       "16   0.133015   0.6390  \n",
-       "53   0.134263   0.9040  \n",
-       "148  0.135415   0.4620  \n",
-       "195  0.136228   0.9610  \n",
-       "92   0.142169   0.9480  \n",
-       "134  0.142349   0.7000  "
-      ]
-     },
-     "execution_count": 90,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True},\n",
-    "               'artist_id': beatles_id}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'neutral': '$sentiment.probability.neutral',\n",
-    "                  'pos': '$sentiment.probability.pos'}}\n",
-    "]\n",
-    "beatles_df = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "beatles_df.sort_values('neg', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 91,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>neutral</th>\n",
-       "      <th>pos</th>\n",
-       "      <th>valence</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>101</th>\n",
-       "      <td>11qDTSr3Dj4TkPnBcIOqEJ</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Vegetable</td>\n",
-       "      <td>0.883291</td>\n",
-       "      <td>0.170371</td>\n",
-       "      <td>0.116709</td>\n",
-       "      <td>0.399</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>49</th>\n",
-       "      <td>38WL6GlG9NHFiQS6JxV84r</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Myxomatosis</td>\n",
-       "      <td>0.864921</td>\n",
-       "      <td>0.261355</td>\n",
-       "      <td>0.135079</td>\n",
-       "      <td>0.560</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>97</th>\n",
-       "      <td>2zYmvi3w2T8a9Ckrv21bvW</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Stop Whispering</td>\n",
-       "      <td>0.855982</td>\n",
-       "      <td>0.188600</td>\n",
-       "      <td>0.144018</td>\n",
-       "      <td>0.279</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>34</th>\n",
-       "      <td>1w8QCSDH4QobcQeT4uMKLm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>4 Minute Warning</td>\n",
-       "      <td>0.854820</td>\n",
-       "      <td>0.516574</td>\n",
-       "      <td>0.145180</td>\n",
-       "      <td>0.219</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>83</th>\n",
-       "      <td>3aDUSpF3LexOr1lFKvPV2h</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The Bends</td>\n",
-       "      <td>0.854244</td>\n",
-       "      <td>0.533823</td>\n",
-       "      <td>0.145756</td>\n",
-       "      <td>0.315</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>103</th>\n",
-       "      <td>48IEDejXX5LH8TAC3VIGpc</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>I Can't</td>\n",
-       "      <td>0.849730</td>\n",
-       "      <td>0.265375</td>\n",
-       "      <td>0.150270</td>\n",
-       "      <td>0.269</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>75</th>\n",
-       "      <td>3SVAN3BRByDmHOhKyIDxfC</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Karma Police</td>\n",
-       "      <td>0.846129</td>\n",
-       "      <td>0.100438</td>\n",
-       "      <td>0.153871</td>\n",
-       "      <td>0.311</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>89</th>\n",
-       "      <td>4dPKQxaraW6CG1rTBzV6DW</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>My Iron Lung</td>\n",
-       "      <td>0.845080</td>\n",
-       "      <td>0.190863</td>\n",
-       "      <td>0.154920</td>\n",
-       "      <td>0.643</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>24</th>\n",
-       "      <td>5SdmtFbNOD7Qej6jFCHkOM</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Faust Arp</td>\n",
-       "      <td>0.838532</td>\n",
-       "      <td>0.167778</td>\n",
-       "      <td>0.161468</td>\n",
-       "      <td>0.224</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>46</th>\n",
-       "      <td>77SPrxY5gn6VPrKPGrfLnM</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>There, There</td>\n",
-       "      <td>0.835541</td>\n",
-       "      <td>0.135951</td>\n",
-       "      <td>0.164459</td>\n",
-       "      <td>0.726</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id artist_name              name       neg   neutral  \\\n",
-       "101  11qDTSr3Dj4TkPnBcIOqEJ   Radiohead         Vegetable  0.883291  0.170371   \n",
-       "49   38WL6GlG9NHFiQS6JxV84r   Radiohead       Myxomatosis  0.864921  0.261355   \n",
-       "97   2zYmvi3w2T8a9Ckrv21bvW   Radiohead   Stop Whispering  0.855982  0.188600   \n",
-       "34   1w8QCSDH4QobcQeT4uMKLm   Radiohead  4 Minute Warning  0.854820  0.516574   \n",
-       "83   3aDUSpF3LexOr1lFKvPV2h   Radiohead         The Bends  0.854244  0.533823   \n",
-       "103  48IEDejXX5LH8TAC3VIGpc   Radiohead           I Can't  0.849730  0.265375   \n",
-       "75   3SVAN3BRByDmHOhKyIDxfC   Radiohead      Karma Police  0.846129  0.100438   \n",
-       "89   4dPKQxaraW6CG1rTBzV6DW   Radiohead      My Iron Lung  0.845080  0.190863   \n",
-       "24   5SdmtFbNOD7Qej6jFCHkOM   Radiohead         Faust Arp  0.838532  0.167778   \n",
-       "46   77SPrxY5gn6VPrKPGrfLnM   Radiohead      There, There  0.835541  0.135951   \n",
-       "\n",
-       "          pos  valence  \n",
-       "101  0.116709    0.399  \n",
-       "49   0.135079    0.560  \n",
-       "97   0.144018    0.279  \n",
-       "34   0.145180    0.219  \n",
-       "83   0.145756    0.315  \n",
-       "103  0.150270    0.269  \n",
-       "75   0.153871    0.311  \n",
-       "89   0.154920    0.643  \n",
-       "24   0.161468    0.224  \n",
-       "46   0.164459    0.726  "
-      ]
-     },
-     "execution_count": 91,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True},\n",
-    "               'artist_id': radiohead_id}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'neutral': '$sentiment.probability.neutral',\n",
-    "                  'pos': '$sentiment.probability.pos'}}\n",
-    "]\n",
-    "radiohead_df = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "radiohead_df.sort_values('neg', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Plot the valence/negativity scatter plot, using blue for The Beatles and red for Radiohead.\n",
-    "\n",
-    "If valence and negativity are correlated, I'd expect to see a trend from high negativity/low valence to low negativity/high valence."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 92,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
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CLj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\nCsIwDMNwYgrCMAzDcGIKwjAMw3Dy/wGKI3fieg/ipgAAAABJRU5ErkJggg==\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ac3f978>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "plt.scatter(beatles_df['valence'], beatles_df['neg'], color='blue')\n",
-    "plt.scatter(radiohead_df['valence'], radiohead_df['neg'], color='red')\n",
-    "plt.xlabel('Valence')\n",
-    "plt.ylabel('Sentiment negativity')\n",
-    "plt.show()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Neutrality, I think, is to do with the confidence in the classification."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 93,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAYgAAAEPCAYAAABY9lNGAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz\nAAALEgAACxIB0t1+/AAAIABJREFUeJztnXucXHV58L9P9jokuxTdrTdCtohC0qrcQqHxlVQSQF9e\nrSjKihZkbcF2o0WLovaDoam+Km2jYO3GvpFgeXeNFLT6elmIGNtYYSMBVHa5VXcBL8xEIUDIZZN9\n3j9+Z3bncs7MmcuZOTPzfD+f85mZM+f8zrNn5/ye33P5PT9RVQzDMAwjl0X1FsAwDMOIJ6YgDMMw\nDF9MQRiGYRi+mIIwDMMwfDEFYRiGYfhiCsIwDMPwJVIFISKbReQJEflxgWOuE5GHReReETkxSnkM\nwzCM8ERtQdwAnBP0pYi8Dnipqr4MuAwYiVgewzAMIySRKghV3QE8WeCQNwJf8o69CzhSRF4QpUyG\nYRhGOOodg3gJ8FjG5194+wzDMIw6U28FIT77rPaHYRhGDGiv8/UfB5ZmfD4a+KXfgSJiisMwDKMM\nVNVvMF6UWlgQgr+lAPB14E8BROR04ClVfSKoIVVt2O1jH/tY3WUw+esvR6vJbvLXf6uESC0IERkF\nVgPPF5FHgY8BnYCq6hdU9Vsi8noReQTYC7wrSnkMwzCM8ESqIFT17SGOGY5SBsMwDKM86h2kbhlW\nr15dbxEqwuSvH40sO5j8jYxU6qOqFSKijSKrYRhGXBARNMZBasMwDKMBMQVhGIZh+GIKwjAMw/DF\nFIRhGIbhiykIwzAMwxdTEIZhGIYvpiAMwzAMX0xBGIZhGL6YgjAMwzB8MQVhGIZh+GIKwjAMw/DF\nFIRhGIbhiykIwzAMwxdTEIZhGIYvpiAMwzAMX0xBtBipFOzc6V4NwzAKYQqihRgbg2XLYO1a9zo2\nVm+JDMOIM7aiXAOTSsH0NAwMQH9/8WOXLYN9+xb2JRIwM+OdW0pjhmE0DLaiXAtSqjUwPQ2dndn7\nOjrcfjMtDMPwwyyIBqSoNVDCOY/enaLvlBIbMwyjYTALosUoaA0E0N8Pmze7vr+3171u3gx9z05z\nkOzGDlKkMcOIKVNTcOON7tWoHFMQDcjAABw8mL1vdtbtL8TgoDMMtm1zryeeCP9y+wCH9mU3dmjf\nLLuXFGksgKwsKUuZMmrIunWwYgVccol7Xbeu3hI1AaraEJsT1UgzOqqaSKj29rrX0dHs75NJ1YkJ\n9+rH8LAquO1tjOpeEvoUvbqXhF7SPaoTE+XLdOSRqn/aMaqzne7DXCKhj2wYDZTFMCplcnLh95y5\nTU7WW7L64/WdZfW7FoNoYIISj8bGYGjIuaEOHnSupMHBhe+nptwIK5M+UgwwzTQD7E30u9jEsz6N\nF5AlHePoI8UMyziChbjGcyQ4oXuGT32xP0uWpsPvn2IZYpFz443Ocshlyxa4+OJaSxMvKolBtFdb\nGKN29Pfn9zeplFMO+/YtxJ0vvRR274Y1a6CvzymMXHbTz7Pd/YjA7UNj9J1SQMP4kI6L7NsHA7i4\nRqaCOEQbL9g/zdBQP2vWNGk/6aeZobC2NqrCaaeVtt8Ih1kQzUDGCHXndD9r18KePf6HLloEc3P+\n323dCq99RXlZTcUsCAX+nBG+0nsZ27bBypWl/5mxxi9NrLsbRCxDrEasWwef+9zC5+FhuP76+skT\nFyyLqZXJmcNw/K6xvAB2JkHKoa0NDh92WU15KVL79sGmTQXFyMySOtjbz5XtG8lU5wJ8lis48mCq\naDC9IfFLLWtrcxo5k2LpZkbZXH89TE46t9LkpCmHamAWRIOR5c4mf9R6uCvBTX83w3uu7kcV9u/P\nji/sZmHkmt7/DEvo4Vme6B5g1y7yLQhwo+FHHy068k3Ld9yTOznqLWfBM8/Mf7eHXu7csI1z/qbZ\nzAfMgjBii1kQLULuhOfxTdN5o9ZnD3Twf/5mmo0bXeDuQsaYYRm3s5YZlvE23Czp9P7tnMkUK9jO\nmTywfxl7btkGH/kIeaq4szNr5JubwZr+DM59dNRJA3DoUFYTvYlZzrlsoFq3I174TTT54hf9J5+Y\ncjAahXLTn2q90eJprsmkSyHNTOFb2p3UuZyde0loH0lNJFRTk0k90J7//fFM6l5yGvO2uURCLz1j\nUvfSnbX/UFdCU5MuT/WWkaS+umtCj+1x1xkeXkhvzUy53TGcnT67Y3i0wF/YJPjlFxfLOTbsHkUI\nFaS51r3jDy1oiyuIiQnXAWf25729qo9sGNVDXQud8NsYnf/uqx+Z0H2dPVknHe7p1R9/YIsePCKn\nMW+bXdyrpzKRNzfiHe2j2t2tevulbv+THJl1vcwtkXD5511dqn0k9VQm5pWWPf9GHpkTaPwm9RgV\nUYmCsBhEg1Co/tKTD6V41x9P89DsQoxBBN6tm9jE5WQ5HxMJuPtu5k4+hUX7c+IMwMG2BC85PMNu\n+vNiF0HzG5YxkxXb6O2FpUvh/vuz2+7pge9+twkzmDympmBiwqVWLl9eb2kahHIKixklYTGIFiCo\nltK2bXDi2n7uaV/Jbvrp7oauLni+pvgMV2QpBwXYuJFU33JGz9rMcyR4jm4UvPcJbj1vc1Znn6aP\nFK/nW8zmTJ2ZpYMBprP2HTiQrxzAxat37ar0TsQTK/NQJuUUFjNqR7mmR603WtzFlCbtqk1NJvW3\n4xO6tDuZ5d7p6lJ9z3tUT2VCnyTbjbSvc4l+Z8OEdnS4XWn3z/FMzruBduxQFVG9kAVX0n46dD+d\n+hQ9OpfjT9pLQq8aSmaV/Tj/fF/v1bz7qdncTFbmoQL8gmvN+COpI8Q5BgGcCzwAPAR8yOf7pcAd\nwC7gXuB1Ae1U/841Kp7PdnZxfhygt1f1X/7Fdf65gehDnQk9uisZ2HkPDzvlM7A4/9ysQDbo4cVL\n9FBXQveMOH9xZoxxx45sBdTHwjUXL1YdH6/z/fOjgiDpZZf536otWyKQsxkpVljMqIjYKgicC+sR\nYBnQ4SmAE3KO2QRc5r1fDvw8oK3q37lGxGfElc5cyhx8XbA6qR9mw3yged8iVzCvqyu/I+vsVP34\nx915IyPO+ni2gII4dESP6pYtmppMBvapn3hFcDA7dn1ABUHSZFK1u9v/VrWSBTE56RRi2X+zZTFF\nRpwVxOnAtzM+X5VrRQD/DFzpvT8D2BHQVtVvXEPik870FL26evHEQt+WYWEcaOvW6XdvUE0mA10h\noNrT4/rGjg7V45nMcyVlZUJ1JfSWkWRwn1pEicXKi1Chi8MvuwxUL7ggYrljRGZl4LQlWi6mJ6pP\nnBXEm4EvZHx+B3BdzjEvBH4MPAb8BjgpoK3q37lGxKdDm0sk9MdbJ/W34xNuCBfQ4U1M6Hz8odBW\nyIKYA726bYN2dhboUwOU2KlMZLnCwpYUD91plNO7BOUPhxTOT790d7dOB1fN+Itlu0ZDJQoi6mqu\nfqlVmvN5ELhBVTeKyOnATcDv+zW2fv36+ferV69m9erV1ZGykUinMw0NuWyP2VlkaIhXXHKKywbZ\nvz+w/s+SJf3Mzha/xDQDvv84gH108/nDl3HwsO8lXGaiz4pGHcwyzcD85zALHEHx0uWlH5hDuasv\nefj8O1pqsvTERPD+UlJ9/aoQDw3RvJV/I2T79u1s3769Oo2Vq1nCbDgX03cyPvu5mH4KvCTj838D\nfT5tVVmvNjjp0bKfxZC7ZVgQxQ5tb3ev6Ylye0noHOheugMnxvl6ZXICjzuGR0uOQ4b2/lSaCVOF\nIGmrukbKtSBy71eFhpxRAGLsYmpjIUjdiQtSL8855pvAxd775cDjAW1V/841A35PViLh8l1zOjy/\nfrSzc0EppD9feqk7fWBxUld1TujlqyfzspE6OkL0qTm9QKmdaOhOoxq9S4Bwrdrxl0KpMQg/V5Jl\nu0ZHbBWEk41zgQeBh4GrvH3XAOfpglLY4SmPXcBZAe1Ece8an6Ana3LSt2dLP5w9PU4JXHtt8Okb\nNgRn6IyMhO88wxwXVMKoJhZEAOYTD0/YLKZC/yrLdo2GWCuIam2mIApQ4pM1MuKUQ1pJ5D6wvb1u\nrkKQO6qnJ/zgPEwnW+iY0H9alXsXG9FGQzFjzyy26lOJgrBaTM1C0LrHmfuBJ++Z5lVvHOCx/cGR\nv0QCvvY1eOtb/VemC1sqJ0yZnbDHhFrSuYprP+/cSd7KfL291G81vCZZ19pKL9Ueq8UUd3IXT6ju\n4Y7+ftdz9ffPn//0powFJF7yEjj6aHrOX8sD+xfWhQDm6zelazzdtDHFSnbSeyBfgFKWNAhTZifM\nMRl/Wuh7UCkVJjdVl9yFQMbGip8TU9JZX5n/80OHnOI1Yki5pketNxrVxVSiI7tSv3f6/GN7CpfL\nyJ19nQ5Z7BlZEGC2M6Hv7BjV3l4Xi9iwobS5CGHcNHF25cTCJx7nG1QmfrPPG/xPijVYDCKmlPhw\nV9oXZJ7vV6wvc8ubfR0gwFwiobvGk0Ex72x8tFuYTjYWHXEA5QbYq4ZfbnIi0dD5n5bSWltMQcSV\nEp+ESh+czPP9ivVldfwdnbprPJndqQUI8J0NE8WtmgLaLbMDDepMGzU4GXmmUxOWim1CoyjWVKIg\nLAYRJSU6siv1e2eev5t+LsWt+TC3eEnesYJy0kk57nofAXR2lj/7+AD79rmA7b59boZrXnzEL5jQ\n1gbf+hb9pFi50vmZg1zpocMHZQVooiFz9m/Be1MJzz7rAj+ZdHe7/Q1K0NomFqSOIeVqllpvNKIF\noVqy/6RSd0vu+beMJF2C+uLF4UyTnAa+++78CrC+p/oNC9M5sQlXFrziUWPMJibUxFXSBMPtZrMa\nGw3MxRRzSnwScg8v9UHKO35kJL/jLtTJeA285Uz/tSMCT0134EuW5J10qCuhx/Yky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EaF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\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ac00198>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "plt.scatter(beatles_df['neutral'], beatles_df['neg'], color='blue')\n",
-    "plt.scatter(radiohead_df['neutral'], radiohead_df['neg'], color='red')\n",
-    "plt.xlabel('Sentiment neutrality')\n",
-    "plt.ylabel('Sentiment negativity')\n",
-    "plt.show()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "This plot shows that most songs have a low neutrality, so express a clear sentiment in the lyrics. Let's plot the distribution of \"neutral\" scores to highlight this."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 95,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7f622ae7f978>"
-      ]
-     },
-     "execution_count": 95,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
-    {
-     "data": {
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-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622b052438>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "beatles_df['neutral'].hist(alpha=0.5, color='blue')\n",
-    "radiohead_df['neutral'].hist(alpha=0.5, color='red')"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Gloom index<a name=\"gloomindex\"></a>\n",
-    "Let's recreate the \"gloom index\" idea from the original post and see what it tells us. Bear in mind that I'm using the sentiment negativity score, not the fraction of \"sad\" words.\n",
-    "\n",
-    "* [Top](#top)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 97,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>279</th>\n",
-       "      <td>66cuLvkHsW7dNkfNk6gQP9</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.505262</td>\n",
-       "      <td>1.991725</td>\n",
-       "      <td>A Wolf At the Door</td>\n",
-       "      <td>0.793363</td>\n",
-       "      <td>0.3630</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>0GRplBEB2FWCKutwMmS6nY</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.475037</td>\n",
-       "      <td>1.853118</td>\n",
-       "      <td>Ticket To Ride - Live / Remastered</td>\n",
-       "      <td>0.825439</td>\n",
-       "      <td>0.4050</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>252</th>\n",
-       "      <td>5SdmtFbNOD7Qej6jFCHkOM</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.398920</td>\n",
-       "      <td>1.411166</td>\n",
-       "      <td>Faust Arp</td>\n",
-       "      <td>0.838532</td>\n",
-       "      <td>0.2240</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>89</th>\n",
-       "      <td>3VgxeWOGdUYvtX1j8C9VyV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.393697</td>\n",
-       "      <td>1.708599</td>\n",
-       "      <td>I'm So Tired - Remastered 2009</td>\n",
-       "      <td>0.892489</td>\n",
-       "      <td>0.6300</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>108</th>\n",
-       "      <td>6ZrPbHp9kRmQj1tGLvna8U</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.270327</td>\n",
-       "      <td>0.874479</td>\n",
-       "      <td>Revolution 9 - Remastered 2009</td>\n",
-       "      <td>0.873285</td>\n",
-       "      <td>0.0963</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>74</th>\n",
-       "      <td>5H9q6ctIlamkqukdTrNt3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.261539</td>\n",
-       "      <td>2.616693</td>\n",
-       "      <td>Her Majesty - Remastered 2009</td>\n",
-       "      <td>0.556608</td>\n",
-       "      <td>0.4900</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>311</th>\n",
-       "      <td>3aDUSpF3LexOr1lFKvPV2h</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.239768</td>\n",
-       "      <td>1.100731</td>\n",
-       "      <td>The Bends</td>\n",
-       "      <td>0.854244</td>\n",
-       "      <td>0.3150</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>24</th>\n",
-       "      <td>0mNQUZEATk2uItMUtiLWK5</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.213645</td>\n",
-       "      <td>1.615224</td>\n",
-       "      <td>A Hard Day's Night - Remastered 2015</td>\n",
-       "      <td>0.833309</td>\n",
-       "      <td>0.7520</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>112</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.212148</td>\n",
-       "      <td>0.799772</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.812490</td>\n",
-       "      <td>0.0380</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>161</th>\n",
-       "      <td>5ou2BiQ9FxIYkxsYvYHpAT</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.210378</td>\n",
-       "      <td>1.648037</td>\n",
-       "      <td>Help! - Remastered 2009</td>\n",
-       "      <td>0.823915</td>\n",
-       "      <td>0.7610</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name     gloom  lyrical_density  \\\n",
-       "279  66cuLvkHsW7dNkfNk6gQP9    Radiohead  1.505262         1.991725   \n",
-       "5    0GRplBEB2FWCKutwMmS6nY  The Beatles  1.475037         1.853118   \n",
-       "252  5SdmtFbNOD7Qej6jFCHkOM    Radiohead  1.398920         1.411166   \n",
-       "89   3VgxeWOGdUYvtX1j8C9VyV  The Beatles  1.393697         1.708599   \n",
-       "108  6ZrPbHp9kRmQj1tGLvna8U  The Beatles  1.270327         0.874479   \n",
-       "74   5H9q6ctIlamkqukdTrNt3k  The Beatles  1.261539         2.616693   \n",
-       "311  3aDUSpF3LexOr1lFKvPV2h    Radiohead  1.239768         1.100731   \n",
-       "24   0mNQUZEATk2uItMUtiLWK5  The Beatles  1.213645         1.615224   \n",
-       "112  0ttMfoND7IQqFSMVOPkELC  The Beatles  1.212148         0.799772   \n",
-       "161  5ou2BiQ9FxIYkxsYvYHpAT  The Beatles  1.210378         1.648037   \n",
-       "\n",
-       "                                     name       neg  valence  \n",
-       "279                    A Wolf At the Door  0.793363   0.3630  \n",
-       "5      Ticket To Ride - Live / Remastered  0.825439   0.4050  \n",
-       "252                             Faust Arp  0.838532   0.2240  \n",
-       "89         I'm So Tired - Remastered 2009  0.892489   0.6300  \n",
-       "108        Revolution 9 - Remastered 2009  0.873285   0.0963  \n",
-       "74          Her Majesty - Remastered 2009  0.556608   0.4900  \n",
-       "311                             The Bends  0.854244   0.3150  \n",
-       "24   A Hard Day's Night - Remastered 2015  0.833309   0.7520  \n",
-       "112        Blue Jay Way - Remastered 2009  0.812490   0.0380  \n",
-       "161               Help! - Remastered 2009  0.823915   0.7610  "
-      ]
-     },
-     "execution_count": 97,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True}}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'lyrical_density': '$lyrical_density',\n",
-    "                  'gloom': {'$divide': [{'$add': [{'$subtract': [1, '$valence']},\n",
-    "                                                  {'$multiply': ['$sentiment.probability.neg', \n",
-    "                                                                 {'$add': ['$lyrical_density', 1]}]}]}, \n",
-    "                                        2]}}}]\n",
-    "results = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "results.sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Interestingly, the gloomiest songs seem pretty evenly spread between Radiohead and The Beatles."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 471,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>61</th>\n",
-       "      <td>66cuLvkHsW7dNkfNk6gQP9</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.505262</td>\n",
-       "      <td>1.991725</td>\n",
-       "      <td>A Wolf At the Door</td>\n",
-       "      <td>0.793363</td>\n",
-       "      <td>0.3630</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>43</th>\n",
-       "      <td>5SdmtFbNOD7Qej6jFCHkOM</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.398920</td>\n",
-       "      <td>1.411166</td>\n",
-       "      <td>Faust Arp</td>\n",
-       "      <td>0.838532</td>\n",
-       "      <td>0.2240</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9</th>\n",
-       "      <td>3aDUSpF3LexOr1lFKvPV2h</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.239768</td>\n",
-       "      <td>1.100731</td>\n",
-       "      <td>The Bends</td>\n",
-       "      <td>0.854244</td>\n",
-       "      <td>0.3150</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>34</th>\n",
-       "      <td>0eZN5WsQfmNFICHuw59Zfz</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.150902</td>\n",
-       "      <td>0.705463</td>\n",
-       "      <td>Glass Eyes</td>\n",
-       "      <td>0.800195</td>\n",
-       "      <td>0.0629</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>20</th>\n",
-       "      <td>3ovbSnT5NNhl1gzMcw1NRZ</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.142115</td>\n",
-       "      <td>1.151468</td>\n",
-       "      <td>Thinking About You</td>\n",
-       "      <td>0.791660</td>\n",
-       "      <td>0.4190</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>045sp2JToyTaaKyXkGejPy</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.090813</td>\n",
-       "      <td>0.581341</td>\n",
-       "      <td>Fake Plastic Trees</td>\n",
-       "      <td>0.827542</td>\n",
-       "      <td>0.1270</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>24</th>\n",
-       "      <td>4D6ZExVvYLZxhcAvifX5px</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.074047</td>\n",
-       "      <td>0.749795</td>\n",
-       "      <td>Prove Yourself</td>\n",
-       "      <td>0.815006</td>\n",
-       "      <td>0.2780</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>13</th>\n",
-       "      <td>4SE81CrzH0qPA8KHqM9Syz</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.064914</td>\n",
-       "      <td>0.856048</td>\n",
-       "      <td>Just</td>\n",
-       "      <td>0.809154</td>\n",
-       "      <td>0.3720</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>4aOAzvRdOsZSwZIgwcdeL0</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.063868</td>\n",
-       "      <td>0.524102</td>\n",
-       "      <td>Let Down</td>\n",
-       "      <td>0.825887</td>\n",
-       "      <td>0.1310</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>23</th>\n",
-       "      <td>11qDTSr3Dj4TkPnBcIOqEJ</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>1.056187</td>\n",
-       "      <td>0.711071</td>\n",
-       "      <td>Vegetable</td>\n",
-       "      <td>0.883291</td>\n",
-       "      <td>0.3990</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                       _id artist_name     gloom  lyrical_density  \\\n",
-       "61  66cuLvkHsW7dNkfNk6gQP9   Radiohead  1.505262         1.991725   \n",
-       "43  5SdmtFbNOD7Qej6jFCHkOM   Radiohead  1.398920         1.411166   \n",
-       "9   3aDUSpF3LexOr1lFKvPV2h   Radiohead  1.239768         1.100731   \n",
-       "34  0eZN5WsQfmNFICHuw59Zfz   Radiohead  1.150902         0.705463   \n",
-       "20  3ovbSnT5NNhl1gzMcw1NRZ   Radiohead  1.142115         1.151468   \n",
-       "11  045sp2JToyTaaKyXkGejPy   Radiohead  1.090813         0.581341   \n",
-       "24  4D6ZExVvYLZxhcAvifX5px   Radiohead  1.074047         0.749795   \n",
-       "13  4SE81CrzH0qPA8KHqM9Syz   Radiohead  1.064914         0.856048   \n",
-       "4   4aOAzvRdOsZSwZIgwcdeL0   Radiohead  1.063868         0.524102   \n",
-       "23  11qDTSr3Dj4TkPnBcIOqEJ   Radiohead  1.056187         0.711071   \n",
-       "\n",
-       "                  name       neg  valence  \n",
-       "61  A Wolf At the Door  0.793363   0.3630  \n",
-       "43           Faust Arp  0.838532   0.2240  \n",
-       "9            The Bends  0.854244   0.3150  \n",
-       "34          Glass Eyes  0.800195   0.0629  \n",
-       "20  Thinking About You  0.791660   0.4190  \n",
-       "11  Fake Plastic Trees  0.827542   0.1270  \n",
-       "24      Prove Yourself  0.815006   0.2780  \n",
-       "13                Just  0.809154   0.3720  \n",
-       "4             Let Down  0.825887   0.1310  \n",
-       "23           Vegetable  0.883291   0.3990  "
-      ]
-     },
-     "execution_count": 471,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True},\n",
-    "               'artist_id': radiohead_id}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'lyrical_density': '$lyrical_density',\n",
-    "                  'gloom': {'$divide': [{'$add': [{'$subtract': [1, '$valence']},\n",
-    "                                                  {'$multiply': ['$sentiment.probability.neg', \n",
-    "                                                                 {'$add': ['$lyrical_density', 1]}]}]}, \n",
-    "                                        2]}}}]\n",
-    "results = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "results.sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "These, in theory, are the most depressing Radiohead songs. For information, the [fitteR happieR songs](http://rcharlie.com/2017-02-16-fitteR-happieR/) were:\n",
-    "\n",
-    "  | gloom_index|               track_name\n",
-    "--|------------|--------------------------|\n",
-    "1 |        1.00 |           True Love Waits\n",
-    "2 |        6.46 |        Give Up The Ghost\n",
-    "3 |        9.35 | Motion Picture Soundtrack\n",
-    "4 |       13.70 |                 Let Down\n",
-    "5 |       14.15 |             Pyramid Song\n",
-    "6 |       14.57 |  Exit Music (For a Film)\n",
-    "7 |       15.29 |          Dollars & Cents\n",
-    "8 |       15.69 |              High And Dry\n",
-    "9 |       15.80 | Tinker Tailor Soldier ...\n",
-    "10|       16.03 |                Videotape\n",
-    "\n",
-    "...which has only one song in common, \"Let Down\". I'm not convinced by this analysis.\n",
-    "\n",
-    "What does the same analysis say for The Beatles?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 98,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>0GRplBEB2FWCKutwMmS6nY</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.475037</td>\n",
-       "      <td>1.853118</td>\n",
-       "      <td>Ticket To Ride - Live / Remastered</td>\n",
-       "      <td>0.825439</td>\n",
-       "      <td>0.4050</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>88</th>\n",
-       "      <td>3VgxeWOGdUYvtX1j8C9VyV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.393697</td>\n",
-       "      <td>1.708599</td>\n",
-       "      <td>I'm So Tired - Remastered 2009</td>\n",
-       "      <td>0.892489</td>\n",
-       "      <td>0.6300</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>107</th>\n",
-       "      <td>6ZrPbHp9kRmQj1tGLvna8U</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.270327</td>\n",
-       "      <td>0.874479</td>\n",
-       "      <td>Revolution 9 - Remastered 2009</td>\n",
-       "      <td>0.873285</td>\n",
-       "      <td>0.0963</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>73</th>\n",
-       "      <td>5H9q6ctIlamkqukdTrNt3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.261539</td>\n",
-       "      <td>2.616693</td>\n",
-       "      <td>Her Majesty - Remastered 2009</td>\n",
-       "      <td>0.556608</td>\n",
-       "      <td>0.4900</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>23</th>\n",
-       "      <td>0mNQUZEATk2uItMUtiLWK5</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.213645</td>\n",
-       "      <td>1.615224</td>\n",
-       "      <td>A Hard Day's Night - Remastered 2015</td>\n",
-       "      <td>0.833309</td>\n",
-       "      <td>0.7520</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>111</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.212148</td>\n",
-       "      <td>0.799772</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.812490</td>\n",
-       "      <td>0.0380</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>160</th>\n",
-       "      <td>5ou2BiQ9FxIYkxsYvYHpAT</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.210378</td>\n",
-       "      <td>1.648037</td>\n",
-       "      <td>Help! - Remastered 2009</td>\n",
-       "      <td>0.823915</td>\n",
-       "      <td>0.7610</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>1alcPfZWUHh01l4Fnoo5Jt</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.203416</td>\n",
-       "      <td>1.332561</td>\n",
-       "      <td>Help! - Live / Remastered</td>\n",
-       "      <td>0.823915</td>\n",
-       "      <td>0.5150</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>220</th>\n",
-       "      <td>2Iccm3cKBQHWt5yk0yX9nh</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.200158</td>\n",
-       "      <td>1.530785</td>\n",
-       "      <td>Please Please Me - Remastered 2009</td>\n",
-       "      <td>0.833068</td>\n",
-       "      <td>0.7080</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>27</th>\n",
-       "      <td>1dfuJYDSIc41cw5RPsaCF1</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.187438</td>\n",
-       "      <td>1.651824</td>\n",
-       "      <td>Help! - Remastered 2015</td>\n",
-       "      <td>0.823915</td>\n",
-       "      <td>0.8100</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name     gloom  lyrical_density  \\\n",
-       "4    0GRplBEB2FWCKutwMmS6nY  The Beatles  1.475037         1.853118   \n",
-       "88   3VgxeWOGdUYvtX1j8C9VyV  The Beatles  1.393697         1.708599   \n",
-       "107  6ZrPbHp9kRmQj1tGLvna8U  The Beatles  1.270327         0.874479   \n",
-       "73   5H9q6ctIlamkqukdTrNt3k  The Beatles  1.261539         2.616693   \n",
-       "23   0mNQUZEATk2uItMUtiLWK5  The Beatles  1.213645         1.615224   \n",
-       "111  0ttMfoND7IQqFSMVOPkELC  The Beatles  1.212148         0.799772   \n",
-       "160  5ou2BiQ9FxIYkxsYvYHpAT  The Beatles  1.210378         1.648037   \n",
-       "10   1alcPfZWUHh01l4Fnoo5Jt  The Beatles  1.203416         1.332561   \n",
-       "220  2Iccm3cKBQHWt5yk0yX9nh  The Beatles  1.200158         1.530785   \n",
-       "27   1dfuJYDSIc41cw5RPsaCF1  The Beatles  1.187438         1.651824   \n",
-       "\n",
-       "                                     name       neg  valence  \n",
-       "4      Ticket To Ride - Live / Remastered  0.825439   0.4050  \n",
-       "88         I'm So Tired - Remastered 2009  0.892489   0.6300  \n",
-       "107        Revolution 9 - Remastered 2009  0.873285   0.0963  \n",
-       "73          Her Majesty - Remastered 2009  0.556608   0.4900  \n",
-       "23   A Hard Day's Night - Remastered 2015  0.833309   0.7520  \n",
-       "111        Blue Jay Way - Remastered 2009  0.812490   0.0380  \n",
-       "160               Help! - Remastered 2009  0.823915   0.7610  \n",
-       "10              Help! - Live / Remastered  0.823915   0.5150  \n",
-       "220    Please Please Me - Remastered 2009  0.833068   0.7080  \n",
-       "27                Help! - Remastered 2015  0.823915   0.8100  "
-      ]
-     },
-     "execution_count": 98,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True},\n",
-    "               'artist_id': beatles_id}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'lyrical_density': '$lyrical_density',\n",
-    "                  'gloom': {'$divide': [{'$add': [{'$subtract': [1, '$valence']},\n",
-    "                                                  {'$multiply': ['$sentiment.probability.neg', \n",
-    "                                                                 {'$add': ['$lyrical_density', 1]}]}]}, \n",
-    "                                        2]}}}]\n",
-    "results = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "results.sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Revised gloom index<a name=\"revisedgloomindex\"></a>\n",
-    "I don't like the calculation for gloom index. If the point of \"lyrical density\" is to scale the gloom index between valence and sentiment, depending on how many words are in the song. Let's do that weighting properly.\n",
-    "\n",
-    "$$gloom = \\frac{(1 - normedLyricDensity)\\times(1 - valence) + normedLyricDensity \\times negativity }{2}$$\n",
-    "\n",
-    "* [Top](#top)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 99,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>258</th>\n",
-       "      <td>4gq2bc2770XvbJdEtfUbmw</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.201546</td>\n",
-       "      <td>Go Slowly</td>\n",
-       "      <td>0.723774</td>\n",
-       "      <td>0.0453</td>\n",
-       "      <td>0.039619</td>\n",
-       "      <td>0.472775</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>309</th>\n",
-       "      <td>75YUnz58ajMo2VIIuUFvOV</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.248061</td>\n",
-       "      <td>The Tourist</td>\n",
-       "      <td>0.667864</td>\n",
-       "      <td>0.0400</td>\n",
-       "      <td>0.056658</td>\n",
-       "      <td>0.471724</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>246</th>\n",
-       "      <td>01ZpFhrMMqKPVCwyqXneVp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.218723</td>\n",
-       "      <td>True Love Waits</td>\n",
-       "      <td>0.532206</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.045911</td>\n",
-       "      <td>0.471229</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>268</th>\n",
-       "      <td>5olWalQH1oVza5D6xJg4oX</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.216752</td>\n",
-       "      <td>Sail To The Moon</td>\n",
-       "      <td>0.605798</td>\n",
-       "      <td>0.0458</td>\n",
-       "      <td>0.045189</td>\n",
-       "      <td>0.469228</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>272</th>\n",
-       "      <td>53RYTfkLiyZuUZHwJC3Wmm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.276367</td>\n",
-       "      <td>We Suck Young Blood</td>\n",
-       "      <td>0.535358</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.067027</td>\n",
-       "      <td>0.466795</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>205</th>\n",
-       "      <td>4sLGaMl33I6mcsk7u4xHAU</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.146307</td>\n",
-       "      <td>Codex</td>\n",
-       "      <td>0.637942</td>\n",
-       "      <td>0.0629</td>\n",
-       "      <td>0.019385</td>\n",
-       "      <td>0.465650</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>112</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.799772</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.812490</td>\n",
-       "      <td>0.0380</td>\n",
-       "      <td>0.258755</td>\n",
-       "      <td>0.461657</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>297</th>\n",
-       "      <td>0COiZ7ncho2yi4HotbzgPv</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.349157</td>\n",
-       "      <td>Motion Picture Soundtrack</td>\n",
-       "      <td>0.576808</td>\n",
-       "      <td>0.0425</td>\n",
-       "      <td>0.093690</td>\n",
-       "      <td>0.460916</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>256</th>\n",
-       "      <td>3uxhyRdWVXp7GQvERQl6fA</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.382643</td>\n",
-       "      <td>Videotape</td>\n",
-       "      <td>0.652962</td>\n",
-       "      <td>0.0468</td>\n",
-       "      <td>0.105957</td>\n",
-       "      <td>0.460694</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>318</th>\n",
-       "      <td>7wB2VenWR6rchtLwawreIg</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.359311</td>\n",
-       "      <td>Bullet Proof ... I Wish I Was</td>\n",
-       "      <td>0.804636</td>\n",
-       "      <td>0.0781</td>\n",
-       "      <td>0.097410</td>\n",
-       "      <td>0.455239</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "258  4gq2bc2770XvbJdEtfUbmw    Radiohead         0.201546   \n",
-       "309  75YUnz58ajMo2VIIuUFvOV    Radiohead         0.248061   \n",
-       "246  01ZpFhrMMqKPVCwyqXneVp    Radiohead         0.218723   \n",
-       "268  5olWalQH1oVza5D6xJg4oX    Radiohead         0.216752   \n",
-       "272  53RYTfkLiyZuUZHwJC3Wmm    Radiohead         0.276367   \n",
-       "205  4sLGaMl33I6mcsk7u4xHAU    Radiohead         0.146307   \n",
-       "112  0ttMfoND7IQqFSMVOPkELC  The Beatles         0.799772   \n",
-       "297  0COiZ7ncho2yi4HotbzgPv    Radiohead         0.349157   \n",
-       "256  3uxhyRdWVXp7GQvERQl6fA    Radiohead         0.382643   \n",
-       "318  7wB2VenWR6rchtLwawreIg    Radiohead         0.359311   \n",
-       "\n",
-       "                               name       neg  valence  scaled_ld     gloom  \n",
-       "258                       Go Slowly  0.723774   0.0453   0.039619  0.472775  \n",
-       "309                     The Tourist  0.667864   0.0400   0.056658  0.471724  \n",
-       "246                 True Love Waits  0.532206   0.0378   0.045911  0.471229  \n",
-       "268                Sail To The Moon  0.605798   0.0458   0.045189  0.469228  \n",
-       "272             We Suck Young Blood  0.535358   0.0378   0.067027  0.466795  \n",
-       "205                           Codex  0.637942   0.0629   0.019385  0.465650  \n",
-       "112  Blue Jay Way - Remastered 2009  0.812490   0.0380   0.258755  0.461657  \n",
-       "297       Motion Picture Soundtrack  0.576808   0.0425   0.093690  0.460916  \n",
-       "256                       Videotape  0.652962   0.0468   0.105957  0.460694  \n",
-       "318   Bullet Proof ... I Wish I Was  0.804636   0.0781   0.097410  0.455239  "
-      ]
-     },
-     "execution_count": 99,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'lyrics': {'$exists': True}, 'sentiment': {'$exists': True}, 'valence': {'$exists': True}}},\n",
-    "    {'$project': {'artist_name': '$artist_name',\n",
-    "                  'name': '$name',\n",
-    "                  'valence': '$valence',\n",
-    "                  'neg': '$sentiment.probability.neg',\n",
-    "                  'lyrical_density': '$lyrical_density'}}]\n",
-    "results = pd.DataFrame(list(tracks.aggregate(pipeline)))\n",
-    "\n",
-    "# Use pandas to scale the lyrical density values to the range 0 -1\n",
-    "results['scaled_ld'] = (results['lyrical_density'] - results['lyrical_density'].min()) / \\\n",
-    "    (results['lyrical_density'].max() - results['lyrical_density'].min())\n",
-    "\n",
-    "# Define a Python function to calculate the revised gloom index\n",
-    "def gloom(row):\n",
-    "    w_valence = (1 - row['valence']) * (1 - row['scaled_ld'])\n",
-    "    w_neg = row['neg'] * row['scaled_ld']\n",
-    "    return (w_valence + w_neg) / 2\n",
-    "\n",
-    "# Apply this function to create a new column\n",
-    "results['gloom'] = results.apply(gloom, axis=1)\n",
-    "\n",
-    "# Push the results back into the database\n",
-    "for row in results.itertuples():\n",
-    "    tracks.update_one({'_id': row[1]}, {'$set': {'gloom': row.gloom}})\n",
-    "\n",
-    "results.sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 100,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>258</th>\n",
-       "      <td>4gq2bc2770XvbJdEtfUbmw</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.201546</td>\n",
-       "      <td>Go Slowly</td>\n",
-       "      <td>0.723774</td>\n",
-       "      <td>0.0453</td>\n",
-       "      <td>0.039619</td>\n",
-       "      <td>0.472775</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>309</th>\n",
-       "      <td>75YUnz58ajMo2VIIuUFvOV</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.248061</td>\n",
-       "      <td>The Tourist</td>\n",
-       "      <td>0.667864</td>\n",
-       "      <td>0.0400</td>\n",
-       "      <td>0.056658</td>\n",
-       "      <td>0.471724</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>246</th>\n",
-       "      <td>01ZpFhrMMqKPVCwyqXneVp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.218723</td>\n",
-       "      <td>True Love Waits</td>\n",
-       "      <td>0.532206</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.045911</td>\n",
-       "      <td>0.471229</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>268</th>\n",
-       "      <td>5olWalQH1oVza5D6xJg4oX</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.216752</td>\n",
-       "      <td>Sail To The Moon</td>\n",
-       "      <td>0.605798</td>\n",
-       "      <td>0.0458</td>\n",
-       "      <td>0.045189</td>\n",
-       "      <td>0.469228</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>272</th>\n",
-       "      <td>53RYTfkLiyZuUZHwJC3Wmm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.276367</td>\n",
-       "      <td>We Suck Young Blood</td>\n",
-       "      <td>0.535358</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.067027</td>\n",
-       "      <td>0.466795</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>205</th>\n",
-       "      <td>4sLGaMl33I6mcsk7u4xHAU</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.146307</td>\n",
-       "      <td>Codex</td>\n",
-       "      <td>0.637942</td>\n",
-       "      <td>0.0629</td>\n",
-       "      <td>0.019385</td>\n",
-       "      <td>0.465650</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>297</th>\n",
-       "      <td>0COiZ7ncho2yi4HotbzgPv</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.349157</td>\n",
-       "      <td>Motion Picture Soundtrack</td>\n",
-       "      <td>0.576808</td>\n",
-       "      <td>0.0425</td>\n",
-       "      <td>0.093690</td>\n",
-       "      <td>0.460916</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>256</th>\n",
-       "      <td>3uxhyRdWVXp7GQvERQl6fA</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.382643</td>\n",
-       "      <td>Videotape</td>\n",
-       "      <td>0.652962</td>\n",
-       "      <td>0.0468</td>\n",
-       "      <td>0.105957</td>\n",
-       "      <td>0.460694</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>318</th>\n",
-       "      <td>7wB2VenWR6rchtLwawreIg</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.359311</td>\n",
-       "      <td>Bullet Proof ... I Wish I Was</td>\n",
-       "      <td>0.804636</td>\n",
-       "      <td>0.0781</td>\n",
-       "      <td>0.097410</td>\n",
-       "      <td>0.455239</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>289</th>\n",
-       "      <td>5AiNZnMDCWwujIENPj9PV9</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.489208</td>\n",
-       "      <td>Everything In Its Right Place</td>\n",
-       "      <td>0.716829</td>\n",
-       "      <td>0.0585</td>\n",
-       "      <td>0.144992</td>\n",
-       "      <td>0.454462</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id artist_name  lyrical_density  \\\n",
-       "258  4gq2bc2770XvbJdEtfUbmw   Radiohead         0.201546   \n",
-       "309  75YUnz58ajMo2VIIuUFvOV   Radiohead         0.248061   \n",
-       "246  01ZpFhrMMqKPVCwyqXneVp   Radiohead         0.218723   \n",
-       "268  5olWalQH1oVza5D6xJg4oX   Radiohead         0.216752   \n",
-       "272  53RYTfkLiyZuUZHwJC3Wmm   Radiohead         0.276367   \n",
-       "205  4sLGaMl33I6mcsk7u4xHAU   Radiohead         0.146307   \n",
-       "297  0COiZ7ncho2yi4HotbzgPv   Radiohead         0.349157   \n",
-       "256  3uxhyRdWVXp7GQvERQl6fA   Radiohead         0.382643   \n",
-       "318  7wB2VenWR6rchtLwawreIg   Radiohead         0.359311   \n",
-       "289  5AiNZnMDCWwujIENPj9PV9   Radiohead         0.489208   \n",
-       "\n",
-       "                              name       neg  valence  scaled_ld     gloom  \n",
-       "258                      Go Slowly  0.723774   0.0453   0.039619  0.472775  \n",
-       "309                    The Tourist  0.667864   0.0400   0.056658  0.471724  \n",
-       "246                True Love Waits  0.532206   0.0378   0.045911  0.471229  \n",
-       "268               Sail To The Moon  0.605798   0.0458   0.045189  0.469228  \n",
-       "272            We Suck Young Blood  0.535358   0.0378   0.067027  0.466795  \n",
-       "205                          Codex  0.637942   0.0629   0.019385  0.465650  \n",
-       "297      Motion Picture Soundtrack  0.576808   0.0425   0.093690  0.460916  \n",
-       "256                      Videotape  0.652962   0.0468   0.105957  0.460694  \n",
-       "318  Bullet Proof ... I Wish I Was  0.804636   0.0781   0.097410  0.455239  \n",
-       "289  Everything In Its Right Place  0.716829   0.0585   0.144992  0.454462  "
-      ]
-     },
-     "execution_count": 100,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results[results['artist_name'] == 'Radiohead'].sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "This still isn't the same as the original list, though there are now two songs in common!\n",
-    "\n",
-    "\n",
-    "  | gloom_index |               track_name\n",
-    "--|-------------|--------------------------\n",
-    "1 |        1.00 |           True Love Waits\n",
-    "2 |        6.46 |        Give Up The Ghost\n",
-    "3 |        9.35 | Motion Picture Soundtrack\n",
-    "4 |       13.70 |                 Let Down\n",
-    "5 |       14.15 |             Pyramid Song\n",
-    "6 |       14.57 |  Exit Music (For a Film)\n",
-    "7 |       15.29 |          Dollars & Cents\n",
-    "8 |       15.69 |              High And Dry\n",
-    "9 |       15.80 | Tinker Tailor Soldier ...\n",
-    "10|       16.03 |                Videotape\n"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 101,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>112</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.799772</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.812490</td>\n",
-       "      <td>0.0380</td>\n",
-       "      <td>0.258755</td>\n",
-       "      <td>0.461657</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>108</th>\n",
-       "      <td>6ZrPbHp9kRmQj1tGLvna8U</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.874479</td>\n",
-       "      <td>Revolution 9 - Remastered 2009</td>\n",
-       "      <td>0.873285</td>\n",
-       "      <td>0.0963</td>\n",
-       "      <td>0.286121</td>\n",
-       "      <td>0.447499</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>2ucFulEWapRAmTn7l6f5Q7</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.169898</td>\n",
-       "      <td>Wild Honey Pie - Remastered 2009</td>\n",
-       "      <td>0.391178</td>\n",
-       "      <td>0.1530</td>\n",
-       "      <td>0.028026</td>\n",
-       "      <td>0.417113</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>132</th>\n",
-       "      <td>3ZFBeIyP41HhnALjxWy1pR</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.628310</td>\n",
-       "      <td>A Day In The Life - Remastered 2009</td>\n",
-       "      <td>0.781296</td>\n",
-       "      <td>0.1620</td>\n",
-       "      <td>0.195947</td>\n",
-       "      <td>0.413445</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>146</th>\n",
-       "      <td>0agoaPIy92gPZ6zRhqXarE</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.634931</td>\n",
-       "      <td>Tomorrow Never Knows - Remastered 2009</td>\n",
-       "      <td>0.343599</td>\n",
-       "      <td>0.0556</td>\n",
-       "      <td>0.198372</td>\n",
-       "      <td>0.412609</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>103</th>\n",
-       "      <td>27YZJHyTTDIurMqDu1v2ef</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.429399</td>\n",
-       "      <td>Long, Long, Long - Remastered 2009</td>\n",
-       "      <td>0.524122</td>\n",
-       "      <td>0.1350</td>\n",
-       "      <td>0.123084</td>\n",
-       "      <td>0.411522</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>65</th>\n",
-       "      <td>4cLoL5KPfE1hAwfsO84FX7</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.325955</td>\n",
-       "      <td>Because - Remastered 2009</td>\n",
-       "      <td>0.466254</td>\n",
-       "      <td>0.1620</td>\n",
-       "      <td>0.085191</td>\n",
-       "      <td>0.403165</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>66</th>\n",
-       "      <td>71Ij3VBYQWMrng61Ae4tBu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.592658</td>\n",
-       "      <td>You Never Give Me Your Money - Remastered 2009</td>\n",
-       "      <td>0.753448</td>\n",
-       "      <td>0.2260</td>\n",
-       "      <td>0.182887</td>\n",
-       "      <td>0.385121</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>67</th>\n",
-       "      <td>3jPXnX4SskFgAcC4YBKOwN</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.273472</td>\n",
-       "      <td>Sun King - Remastered 2009</td>\n",
-       "      <td>0.300809</td>\n",
-       "      <td>0.1970</td>\n",
-       "      <td>0.065966</td>\n",
-       "      <td>0.384936</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>43</th>\n",
-       "      <td>7iABnSNZciNepqGtjMQxxd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.800176</td>\n",
-       "      <td>Come Together - Remastered 2015</td>\n",
-       "      <td>0.562552</td>\n",
-       "      <td>0.1780</td>\n",
-       "      <td>0.258903</td>\n",
-       "      <td>0.377414</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "112  0ttMfoND7IQqFSMVOPkELC  The Beatles         0.799772   \n",
-       "108  6ZrPbHp9kRmQj1tGLvna8U  The Beatles         0.874479   \n",
-       "0    2ucFulEWapRAmTn7l6f5Q7  The Beatles         0.169898   \n",
-       "132  3ZFBeIyP41HhnALjxWy1pR  The Beatles         0.628310   \n",
-       "146  0agoaPIy92gPZ6zRhqXarE  The Beatles         0.634931   \n",
-       "103  27YZJHyTTDIurMqDu1v2ef  The Beatles         0.429399   \n",
-       "65   4cLoL5KPfE1hAwfsO84FX7  The Beatles         0.325955   \n",
-       "66   71Ij3VBYQWMrng61Ae4tBu  The Beatles         0.592658   \n",
-       "67   3jPXnX4SskFgAcC4YBKOwN  The Beatles         0.273472   \n",
-       "43   7iABnSNZciNepqGtjMQxxd  The Beatles         0.800176   \n",
-       "\n",
-       "                                               name       neg  valence  \\\n",
-       "112                  Blue Jay Way - Remastered 2009  0.812490   0.0380   \n",
-       "108                  Revolution 9 - Remastered 2009  0.873285   0.0963   \n",
-       "0                  Wild Honey Pie - Remastered 2009  0.391178   0.1530   \n",
-       "132             A Day In The Life - Remastered 2009  0.781296   0.1620   \n",
-       "146          Tomorrow Never Knows - Remastered 2009  0.343599   0.0556   \n",
-       "103              Long, Long, Long - Remastered 2009  0.524122   0.1350   \n",
-       "65                        Because - Remastered 2009  0.466254   0.1620   \n",
-       "66   You Never Give Me Your Money - Remastered 2009  0.753448   0.2260   \n",
-       "67                       Sun King - Remastered 2009  0.300809   0.1970   \n",
-       "43                  Come Together - Remastered 2015  0.562552   0.1780   \n",
-       "\n",
-       "     scaled_ld     gloom  \n",
-       "112   0.258755  0.461657  \n",
-       "108   0.286121  0.447499  \n",
-       "0     0.028026  0.417113  \n",
-       "132   0.195947  0.413445  \n",
-       "146   0.198372  0.412609  \n",
-       "103   0.123084  0.411522  \n",
-       "65    0.085191  0.403165  \n",
-       "66    0.182887  0.385121  \n",
-       "67    0.065966  0.384936  \n",
-       "43    0.258903  0.377414  "
-      ]
-     },
-     "execution_count": 101,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results[results['artist_name'] == 'The Beatles'].sort_values('gloom', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "I don't know the Radiohead corpus, but I know some Beatles songs. _Blue Jay Way_ is pretty sad, as is _A Day in the Life_. _Revolution 9_ and _Wild Honey Pie_ are just... odd, rather than sad. It's suspicious that some obviously sad Beatles songs are missing. What does this analysis think of unequivocally sad songs like _She's Leaving Home_, _Yesterday_, and _Eleanor Rigby_?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 102,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>29</th>\n",
-       "      <td>63uskN0xLezVg4281wzeQn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.005426</td>\n",
-       "      <td>Yesterday - Remastered 2015</td>\n",
-       "      <td>0.852156</td>\n",
-       "      <td>0.348</td>\n",
-       "      <td>0.334088</td>\n",
-       "      <td>0.359435</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>125</th>\n",
-       "      <td>1Ipl1kvks5s6GKn6oqgzeY</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.064324</td>\n",
-       "      <td>She's Leaving Home - Remastered 2009</td>\n",
-       "      <td>0.764553</td>\n",
-       "      <td>0.377</td>\n",
-       "      <td>0.355663</td>\n",
-       "      <td>0.336673</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>34</th>\n",
-       "      <td>0TRkjwb4uY3CHb5zhr9bBd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.628703</td>\n",
-       "      <td>Eleanor Rigby - Remastered 2015</td>\n",
-       "      <td>0.803232</td>\n",
-       "      <td>0.845</td>\n",
-       "      <td>0.562401</td>\n",
-       "      <td>0.259783</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "29   63uskN0xLezVg4281wzeQn  The Beatles         1.005426   \n",
-       "125  1Ipl1kvks5s6GKn6oqgzeY  The Beatles         1.064324   \n",
-       "34   0TRkjwb4uY3CHb5zhr9bBd  The Beatles         1.628703   \n",
-       "\n",
-       "                                     name       neg  valence  scaled_ld  \\\n",
-       "29            Yesterday - Remastered 2015  0.852156    0.348   0.334088   \n",
-       "125  She's Leaving Home - Remastered 2009  0.764553    0.377   0.355663   \n",
-       "34        Eleanor Rigby - Remastered 2015  0.803232    0.845   0.562401   \n",
-       "\n",
-       "        gloom  \n",
-       "29   0.359435  \n",
-       "125  0.336673  \n",
-       "34   0.259783  "
-      ]
-     },
-     "execution_count": 102,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "slh = tracks.find_one({'ctitle': 'shes leaving home'})['_id']\n",
-    "yd = tracks.find_one({'ctitle': 'yesterday'})['_id']\n",
-    "er = tracks.find_one({'ctitle': 'eleanor rigby'})['_id']\n",
-    "results[results['_id'].isin([slh, yd, er])].sort_values('gloom', ascending=False)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Glee index: anti-gloom<a name=\"gleeindex\"></a>\n",
-    "Rather than looking at the saddest songs, how about using the same data to find the happiest songs?\n",
-    "\n",
-    "* [Top](#top)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 103,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>84</th>\n",
-       "      <td>3fuEJBCK3kWnJHFTODR4cb</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.608806</td>\n",
-       "      <td>Ob-La-Di, Ob-La-Da - Remastered 2009</td>\n",
-       "      <td>0.080969</td>\n",
-       "      <td>0.975</td>\n",
-       "      <td>0.555112</td>\n",
-       "      <td>0.028035</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>78</th>\n",
-       "      <td>3TEbDhNDU4NDXq0h86nGZ7</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.008850</td>\n",
-       "      <td>Hey Bulldog - Remastered 2009</td>\n",
-       "      <td>0.239198</td>\n",
-       "      <td>0.942</td>\n",
-       "      <td>0.335342</td>\n",
-       "      <td>0.059382</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>220</th>\n",
-       "      <td>5VsIn7QQqcacePIb0vO0ow</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.465201</td>\n",
-       "      <td>Not A Second Time - Remastered 2009</td>\n",
-       "      <td>0.773805</td>\n",
-       "      <td>0.961</td>\n",
-       "      <td>0.136198</td>\n",
-       "      <td>0.069540</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>97</th>\n",
-       "      <td>4KIXWIzNcKzorNDgvMQwmD</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.631592</td>\n",
-       "      <td>Birthday - Remastered 2009</td>\n",
-       "      <td>0.373731</td>\n",
-       "      <td>0.916</td>\n",
-       "      <td>0.197149</td>\n",
-       "      <td>0.070560</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>210</th>\n",
-       "      <td>7cPPyMrSAQY7A686Cn9eUP</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.891649</td>\n",
-       "      <td>All My Loving - Remastered 2009</td>\n",
-       "      <td>0.235023</td>\n",
-       "      <td>0.891</td>\n",
-       "      <td>0.292411</td>\n",
-       "      <td>0.072925</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>187</th>\n",
-       "      <td>3EbGioQyKyf4dycuiPOg3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.438356</td>\n",
-       "      <td>Everybody's Trying To Be My Baby - Remastered ...</td>\n",
-       "      <td>0.866985</td>\n",
-       "      <td>0.937</td>\n",
-       "      <td>0.126365</td>\n",
-       "      <td>0.082298</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>56</th>\n",
-       "      <td>0cJ053ljI4BuP5P8tJnK5j</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.893485</td>\n",
-       "      <td>For You Blue - Remastered 2009</td>\n",
-       "      <td>0.471827</td>\n",
-       "      <td>0.958</td>\n",
-       "      <td>0.293083</td>\n",
-       "      <td>0.083988</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>216</th>\n",
-       "      <td>6xJSJpO6HJwHhu7UaIc8qR</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.585885</td>\n",
-       "      <td>Hold Me Tight - Remastered 2009</td>\n",
-       "      <td>0.804870</td>\n",
-       "      <td>0.963</td>\n",
-       "      <td>0.180406</td>\n",
-       "      <td>0.087764</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>48</th>\n",
-       "      <td>72Ob0wrObCXgvGYhFs8vip</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.938049</td>\n",
-       "      <td>Across The Universe - Remastered 2009</td>\n",
-       "      <td>0.295525</td>\n",
-       "      <td>0.862</td>\n",
-       "      <td>0.309408</td>\n",
-       "      <td>0.093370</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>141</th>\n",
-       "      <td>6RdvhWyzCULNTHcMbAXwXK</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.879719</td>\n",
-       "      <td>And Your Bird Can Sing - Remastered 2009</td>\n",
-       "      <td>0.582875</td>\n",
-       "      <td>0.966</td>\n",
-       "      <td>0.288041</td>\n",
-       "      <td>0.096049</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "84   3fuEJBCK3kWnJHFTODR4cb  The Beatles         1.608806   \n",
-       "78   3TEbDhNDU4NDXq0h86nGZ7  The Beatles         1.008850   \n",
-       "220  5VsIn7QQqcacePIb0vO0ow  The Beatles         0.465201   \n",
-       "97   4KIXWIzNcKzorNDgvMQwmD  The Beatles         0.631592   \n",
-       "210  7cPPyMrSAQY7A686Cn9eUP  The Beatles         0.891649   \n",
-       "187  3EbGioQyKyf4dycuiPOg3k  The Beatles         0.438356   \n",
-       "56   0cJ053ljI4BuP5P8tJnK5j  The Beatles         0.893485   \n",
-       "216  6xJSJpO6HJwHhu7UaIc8qR  The Beatles         0.585885   \n",
-       "48   72Ob0wrObCXgvGYhFs8vip  The Beatles         0.938049   \n",
-       "141  6RdvhWyzCULNTHcMbAXwXK  The Beatles         0.879719   \n",
-       "\n",
-       "                                                  name       neg  valence  \\\n",
-       "84                Ob-La-Di, Ob-La-Da - Remastered 2009  0.080969    0.975   \n",
-       "78                       Hey Bulldog - Remastered 2009  0.239198    0.942   \n",
-       "220                Not A Second Time - Remastered 2009  0.773805    0.961   \n",
-       "97                          Birthday - Remastered 2009  0.373731    0.916   \n",
-       "210                    All My Loving - Remastered 2009  0.235023    0.891   \n",
-       "187  Everybody's Trying To Be My Baby - Remastered ...  0.866985    0.937   \n",
-       "56                      For You Blue - Remastered 2009  0.471827    0.958   \n",
-       "216                    Hold Me Tight - Remastered 2009  0.804870    0.963   \n",
-       "48               Across The Universe - Remastered 2009  0.295525    0.862   \n",
-       "141           And Your Bird Can Sing - Remastered 2009  0.582875    0.966   \n",
-       "\n",
-       "     scaled_ld     gloom  \n",
-       "84    0.555112  0.028035  \n",
-       "78    0.335342  0.059382  \n",
-       "220   0.136198  0.069540  \n",
-       "97    0.197149  0.070560  \n",
-       "210   0.292411  0.072925  \n",
-       "187   0.126365  0.082298  \n",
-       "56    0.293083  0.083988  \n",
-       "216   0.180406  0.087764  \n",
-       "48    0.309408  0.093370  \n",
-       "141   0.288041  0.096049  "
-      ]
-     },
-     "execution_count": 103,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results.sort_values('gloom', ascending=True).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "All the top ten most gleeful songs are from The Beatles!\n",
-    "\n",
-    "What about the most gleeful Radiohead songs?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 104,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>0eECFDnWy0RdjMmJ8NOeAL</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.093389</td>\n",
-       "      <td>Feral</td>\n",
-       "      <td>0.465216</td>\n",
-       "      <td>0.751</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.124500</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>247</th>\n",
-       "      <td>6dsq7Nt5mIFzvm5kIYNORy</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.674272</td>\n",
-       "      <td>15 Step</td>\n",
-       "      <td>0.835488</td>\n",
-       "      <td>0.848</td>\n",
-       "      <td>0.212783</td>\n",
-       "      <td>0.148717</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>274</th>\n",
-       "      <td>77SPrxY5gn6VPrKPGrfLnM</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.438813</td>\n",
-       "      <td>There, There</td>\n",
-       "      <td>0.835541</td>\n",
-       "      <td>0.726</td>\n",
-       "      <td>0.126532</td>\n",
-       "      <td>0.172527</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>269</th>\n",
-       "      <td>6CVdTDYoDbwYj4xn8u5Gha</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.452573</td>\n",
-       "      <td>Backdrifts</td>\n",
-       "      <td>0.821532</td>\n",
-       "      <td>0.724</td>\n",
-       "      <td>0.131573</td>\n",
-       "      <td>0.173889</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>255</th>\n",
-       "      <td>15ea10YpJIl3mJq75yzqsD</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.952216</td>\n",
-       "      <td>Jigsaw Falling Into Place</td>\n",
-       "      <td>0.757225</td>\n",
-       "      <td>0.818</td>\n",
-       "      <td>0.314597</td>\n",
-       "      <td>0.181482</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>263</th>\n",
-       "      <td>6P67UTTr5qN7XYSSlj0n6X</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.503609</td>\n",
-       "      <td>Paperbag Writer</td>\n",
-       "      <td>0.754680</td>\n",
-       "      <td>0.704</td>\n",
-       "      <td>0.150268</td>\n",
-       "      <td>0.182462</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>298</th>\n",
-       "      <td>3OsUjkcv1C1v5udFhgRSFg</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.329999</td>\n",
-       "      <td>Airbag</td>\n",
-       "      <td>0.642348</td>\n",
-       "      <td>0.642</td>\n",
-       "      <td>0.086673</td>\n",
-       "      <td>0.191323</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>304</th>\n",
-       "      <td>53aFGAl0Vebwp2bo8wtdWR</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>2.019892</td>\n",
-       "      <td>Fitter Happier</td>\n",
-       "      <td>0.446841</td>\n",
-       "      <td>0.728</td>\n",
-       "      <td>0.705697</td>\n",
-       "      <td>0.197693</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>264</th>\n",
-       "      <td>3STByesnbcQatiGHgwi1Tv</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.622541</td>\n",
-       "      <td>I Am a Wicked Child</td>\n",
-       "      <td>0.763706</td>\n",
-       "      <td>0.688</td>\n",
-       "      <td>0.193834</td>\n",
-       "      <td>0.199778</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>236</th>\n",
-       "      <td>3pcCifdPTc2BbqmWpEhtUd</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.439692</td>\n",
-       "      <td>Burn the Witch</td>\n",
-       "      <td>0.582602</td>\n",
-       "      <td>0.625</td>\n",
-       "      <td>0.126854</td>\n",
-       "      <td>0.200668</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id artist_name  lyrical_density  \\\n",
-       "1    0eECFDnWy0RdjMmJ8NOeAL   Radiohead         0.093389   \n",
-       "247  6dsq7Nt5mIFzvm5kIYNORy   Radiohead         0.674272   \n",
-       "274  77SPrxY5gn6VPrKPGrfLnM   Radiohead         0.438813   \n",
-       "269  6CVdTDYoDbwYj4xn8u5Gha   Radiohead         0.452573   \n",
-       "255  15ea10YpJIl3mJq75yzqsD   Radiohead         0.952216   \n",
-       "263  6P67UTTr5qN7XYSSlj0n6X   Radiohead         0.503609   \n",
-       "298  3OsUjkcv1C1v5udFhgRSFg   Radiohead         0.329999   \n",
-       "304  53aFGAl0Vebwp2bo8wtdWR   Radiohead         2.019892   \n",
-       "264  3STByesnbcQatiGHgwi1Tv   Radiohead         0.622541   \n",
-       "236  3pcCifdPTc2BbqmWpEhtUd   Radiohead         0.439692   \n",
-       "\n",
-       "                          name       neg  valence  scaled_ld     gloom  \n",
-       "1                        Feral  0.465216    0.751   0.000000  0.124500  \n",
-       "247                    15 Step  0.835488    0.848   0.212783  0.148717  \n",
-       "274               There, There  0.835541    0.726   0.126532  0.172527  \n",
-       "269                 Backdrifts  0.821532    0.724   0.131573  0.173889  \n",
-       "255  Jigsaw Falling Into Place  0.757225    0.818   0.314597  0.181482  \n",
-       "263            Paperbag Writer  0.754680    0.704   0.150268  0.182462  \n",
-       "298                     Airbag  0.642348    0.642   0.086673  0.191323  \n",
-       "304             Fitter Happier  0.446841    0.728   0.705697  0.197693  \n",
-       "264        I Am a Wicked Child  0.763706    0.688   0.193834  0.199778  \n",
-       "236             Burn the Witch  0.582602    0.625   0.126854  0.200668  "
-      ]
-     },
-     "execution_count": 104,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results[results['artist_name'] == 'Radiohead'].sort_values('gloom', ascending=True).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Contrasting songs<a name=\"valencenegcontrast\"></a>\n",
-    "Going back to the scatter plot of negativity against valence, there are some songs with a high valence (i.e. sound happy) with a high negativity (i.e. sad words). This seems unusual. What songs are they?\n",
-    "\n",
-    "* [Top](#top)\n",
-    "\n",
-    "These are the songs I mean:"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 105,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
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XXK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\nlIiCEARBEJT8f2yXnXTotlJgAAAAAElFTkSuQmCC\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ab50c50>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "plt.scatter(beatles_df['valence'], beatles_df['neg'], color='blue')\n",
-    "plt.scatter(radiohead_df['valence'], radiohead_df['neg'], color='red')\n",
-    "plt.xlabel('Valence')\n",
-    "plt.ylabel('Sentiment negativity')\n",
-    "\n",
-    "ax = plt.gca()\n",
-    "circ = plt.Circle((0.9, 0.8), radius=0.15, color='g', fill=False, linewidth=5)\n",
-    "ax.add_patch(circ)\n",
-    "\n",
-    "plt.show()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 106,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>23</th>\n",
-       "      <td>7pQAq14Z73YUFMtxCyt0bG</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.516618</td>\n",
-       "      <td>Can't Buy Me Love - Remastered 2015</td>\n",
-       "      <td>0.738387</td>\n",
-       "      <td>0.957</td>\n",
-       "      <td>0.521343</td>\n",
-       "      <td>0.202768</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>28</th>\n",
-       "      <td>1dfuJYDSIc41cw5RPsaCF1</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.651824</td>\n",
-       "      <td>Help! - Remastered 2015</td>\n",
-       "      <td>0.823915</td>\n",
-       "      <td>0.810</td>\n",
-       "      <td>0.570870</td>\n",
-       "      <td>0.275942</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>34</th>\n",
-       "      <td>0TRkjwb4uY3CHb5zhr9bBd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.628703</td>\n",
-       "      <td>Eleanor Rigby - Remastered 2015</td>\n",
-       "      <td>0.803232</td>\n",
-       "      <td>0.845</td>\n",
-       "      <td>0.562401</td>\n",
-       "      <td>0.259783</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>46</th>\n",
-       "      <td>57n1teNb2tkcfiYagPmUWr</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.885556</td>\n",
-       "      <td>Two Of Us - Remastered 2009</td>\n",
-       "      <td>0.711080</td>\n",
-       "      <td>0.923</td>\n",
-       "      <td>0.290179</td>\n",
-       "      <td>0.130498</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>54</th>\n",
-       "      <td>4311wT21Et0q3vepFwXjTu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.718556</td>\n",
-       "      <td>One After 909 - Remastered 2009</td>\n",
-       "      <td>0.865737</td>\n",
-       "      <td>0.904</td>\n",
-       "      <td>0.229005</td>\n",
-       "      <td>0.136137</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>68</th>\n",
-       "      <td>67jL5ZAf8hNsRZrfBHNuBT</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.277562</td>\n",
-       "      <td>Mean Mr Mustard - Remastered 2009</td>\n",
-       "      <td>0.700631</td>\n",
-       "      <td>0.967</td>\n",
-       "      <td>0.433774</td>\n",
-       "      <td>0.161301</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>93</th>\n",
-       "      <td>3OSi8ehmSWLTD5KatlzX8r</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.733338</td>\n",
-       "      <td>Don't Pass Me By - Remastered 2009</td>\n",
-       "      <td>0.857831</td>\n",
-       "      <td>0.948</td>\n",
-       "      <td>0.234420</td>\n",
-       "      <td>0.120451</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>94</th>\n",
-       "      <td>4zExFATo8xg8qFfR4H1ZAn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.364176</td>\n",
-       "      <td>Why Don't We Do It In The Road? - Remastered 2009</td>\n",
-       "      <td>0.793242</td>\n",
-       "      <td>0.951</td>\n",
-       "      <td>0.465502</td>\n",
-       "      <td>0.197723</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>134</th>\n",
-       "      <td>77f3aNeabAbOaSB32Sd5QE</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.620131</td>\n",
-       "      <td>Eleanor Rigby - Remastered 2009</td>\n",
-       "      <td>0.803232</td>\n",
-       "      <td>0.821</td>\n",
-       "      <td>0.559261</td>\n",
-       "      <td>0.264054</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>168</th>\n",
-       "      <td>67tvBtAhsfHBFpuqJ13ZUq</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.924368</td>\n",
-       "      <td>Act Naturally - Remastered 2009</td>\n",
-       "      <td>0.722619</td>\n",
-       "      <td>0.946</td>\n",
-       "      <td>0.304396</td>\n",
-       "      <td>0.128762</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>170</th>\n",
-       "      <td>1k9tpndMDRwLkNt67Dlg02</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.408837</td>\n",
-       "      <td>You Like Me Too Much - Remastered 2009</td>\n",
-       "      <td>0.773406</td>\n",
-       "      <td>0.900</td>\n",
-       "      <td>0.481862</td>\n",
-       "      <td>0.212244</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>172</th>\n",
-       "      <td>67VdmhC89bZ6yK2XRys0lA</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.087652</td>\n",
-       "      <td>I've Just Seen A Face - Remastered 2009</td>\n",
-       "      <td>0.805204</td>\n",
-       "      <td>0.917</td>\n",
-       "      <td>0.364208</td>\n",
-       "      <td>0.173016</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>175</th>\n",
-       "      <td>009oOX7tpCPLzRL9AFiBS8</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.242035</td>\n",
-       "      <td>No Reply - Remastered 2009</td>\n",
-       "      <td>0.781942</td>\n",
-       "      <td>0.873</td>\n",
-       "      <td>0.420761</td>\n",
-       "      <td>0.201287</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>176</th>\n",
-       "      <td>5zs8tSd7ZvwBgr4NUmF5zM</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.959827</td>\n",
-       "      <td>I'm A Loser - Remastered 2009</td>\n",
-       "      <td>0.812114</td>\n",
-       "      <td>0.843</td>\n",
-       "      <td>0.317385</td>\n",
-       "      <td>0.182462</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>177</th>\n",
-       "      <td>3mKtIanz0poYgLnRxZrfBO</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.501767</td>\n",
-       "      <td>Baby's In Black - Remastered 2009</td>\n",
-       "      <td>0.820088</td>\n",
-       "      <td>0.862</td>\n",
-       "      <td>0.515903</td>\n",
-       "      <td>0.244945</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>185</th>\n",
-       "      <td>33BGv6xzxHh5E7v3r1hJLL</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.314197</td>\n",
-       "      <td>I Don't Want To Spoil The Party - Remastered 2009</td>\n",
-       "      <td>0.817801</td>\n",
-       "      <td>0.896</td>\n",
-       "      <td>0.447194</td>\n",
-       "      <td>0.211604</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>186</th>\n",
-       "      <td>2YHzfuuDFXzoELxJnqM4at</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.626500</td>\n",
-       "      <td>What You're Doing - Remastered 2009</td>\n",
-       "      <td>0.751989</td>\n",
-       "      <td>0.831</td>\n",
-       "      <td>0.195284</td>\n",
-       "      <td>0.141424</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>187</th>\n",
-       "      <td>3EbGioQyKyf4dycuiPOg3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.438356</td>\n",
-       "      <td>Everybody's Trying To Be My Baby - Remastered ...</td>\n",
-       "      <td>0.866985</td>\n",
-       "      <td>0.937</td>\n",
-       "      <td>0.126365</td>\n",
-       "      <td>0.082298</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>188</th>\n",
-       "      <td>69d54YOS8TOQiUYjX57XeA</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.601816</td>\n",
-       "      <td>A Hard Day's Night - Remastered 2009</td>\n",
-       "      <td>0.833309</td>\n",
-       "      <td>0.802</td>\n",
-       "      <td>0.552552</td>\n",
-       "      <td>0.274521</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>193</th>\n",
-       "      <td>4G5YzDD1nCUPwt5y1LQovF</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.901370</td>\n",
-       "      <td>Tell Me Why - Remastered 2009</td>\n",
-       "      <td>0.849970</td>\n",
-       "      <td>0.819</td>\n",
-       "      <td>0.295972</td>\n",
-       "      <td>0.189498</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>194</th>\n",
-       "      <td>7KmRz1oKEwgj9qpfn72OfO</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.509096</td>\n",
-       "      <td>Can't Buy Me Love - Remastered 2009</td>\n",
-       "      <td>0.738387</td>\n",
-       "      <td>0.854</td>\n",
-       "      <td>0.518588</td>\n",
-       "      <td>0.226602</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>196</th>\n",
-       "      <td>3Aqo28W4LLAolYpN3duVJl</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.349222</td>\n",
-       "      <td>I'll Cry Instead - Remastered 2009</td>\n",
-       "      <td>0.863772</td>\n",
-       "      <td>0.961</td>\n",
-       "      <td>0.460024</td>\n",
-       "      <td>0.209207</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>199</th>\n",
-       "      <td>4dyALlslhDEzwSEr7GteXa</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.246021</td>\n",
-       "      <td>You Can't Do That - Remastered 2009</td>\n",
-       "      <td>0.727456</td>\n",
-       "      <td>0.962</td>\n",
-       "      <td>0.422221</td>\n",
-       "      <td>0.164551</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>208</th>\n",
-       "      <td>5tNjuWwp6FxuWCrKQAMBTj</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.959614</td>\n",
-       "      <td>It Won't Be Long - Remastered 2009</td>\n",
-       "      <td>0.783388</td>\n",
-       "      <td>0.868</td>\n",
-       "      <td>0.317307</td>\n",
-       "      <td>0.169345</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>209</th>\n",
-       "      <td>1JPTCjLHEtqofOFmHsfiAH</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.036117</td>\n",
-       "      <td>All I've Got To Do - Remastered 2009</td>\n",
-       "      <td>0.721191</td>\n",
-       "      <td>0.876</td>\n",
-       "      <td>0.345331</td>\n",
-       "      <td>0.165114</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>211</th>\n",
-       "      <td>0lLeGCsQlAbEjQBPQQxQ1b</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.998293</td>\n",
-       "      <td>Don't Bother Me - Remastered 2009</td>\n",
-       "      <td>0.824879</td>\n",
-       "      <td>0.921</td>\n",
-       "      <td>0.331476</td>\n",
-       "      <td>0.163120</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>212</th>\n",
-       "      <td>55nE9EppLFdb0I1HBg2O2m</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.695489</td>\n",
-       "      <td>Little Child - Remastered 2009</td>\n",
-       "      <td>0.848886</td>\n",
-       "      <td>0.878</td>\n",
-       "      <td>0.220555</td>\n",
-       "      <td>0.141159</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>214</th>\n",
-       "      <td>5IIBY9M2GxHcVja6DA6wsF</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.362221</td>\n",
-       "      <td>Please Mister Postman - Remastered 2009</td>\n",
-       "      <td>0.815201</td>\n",
-       "      <td>0.962</td>\n",
-       "      <td>0.464786</td>\n",
-       "      <td>0.199616</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>216</th>\n",
-       "      <td>6xJSJpO6HJwHhu7UaIc8qR</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.585885</td>\n",
-       "      <td>Hold Me Tight - Remastered 2009</td>\n",
-       "      <td>0.804870</td>\n",
-       "      <td>0.963</td>\n",
-       "      <td>0.180406</td>\n",
-       "      <td>0.087764</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>219</th>\n",
-       "      <td>3Ltllbv2lbpjP6NgPMNiFg</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.101133</td>\n",
-       "      <td>Devil In Her Heart - Remastered 2009</td>\n",
-       "      <td>0.779220</td>\n",
-       "      <td>0.964</td>\n",
-       "      <td>0.369147</td>\n",
-       "      <td>0.155179</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>220</th>\n",
-       "      <td>5VsIn7QQqcacePIb0vO0ow</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.465201</td>\n",
-       "      <td>Not A Second Time - Remastered 2009</td>\n",
-       "      <td>0.773805</td>\n",
-       "      <td>0.961</td>\n",
-       "      <td>0.136198</td>\n",
-       "      <td>0.069540</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>223</th>\n",
-       "      <td>33OXG0RTtw0ycGza22tnF6</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.022599</td>\n",
-       "      <td>Misery - Remastered 2009</td>\n",
-       "      <td>0.814230</td>\n",
-       "      <td>0.902</td>\n",
-       "      <td>0.340379</td>\n",
-       "      <td>0.170895</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>247</th>\n",
-       "      <td>6dsq7Nt5mIFzvm5kIYNORy</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.674272</td>\n",
-       "      <td>15 Step</td>\n",
-       "      <td>0.835488</td>\n",
-       "      <td>0.848</td>\n",
-       "      <td>0.212783</td>\n",
-       "      <td>0.148717</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>255</th>\n",
-       "      <td>15ea10YpJIl3mJq75yzqsD</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.952216</td>\n",
-       "      <td>Jigsaw Falling Into Place</td>\n",
-       "      <td>0.757225</td>\n",
-       "      <td>0.818</td>\n",
-       "      <td>0.314597</td>\n",
-       "      <td>0.181482</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "23   7pQAq14Z73YUFMtxCyt0bG  The Beatles         1.516618   \n",
-       "28   1dfuJYDSIc41cw5RPsaCF1  The Beatles         1.651824   \n",
-       "34   0TRkjwb4uY3CHb5zhr9bBd  The Beatles         1.628703   \n",
-       "46   57n1teNb2tkcfiYagPmUWr  The Beatles         0.885556   \n",
-       "54   4311wT21Et0q3vepFwXjTu  The Beatles         0.718556   \n",
-       "68   67jL5ZAf8hNsRZrfBHNuBT  The Beatles         1.277562   \n",
-       "93   3OSi8ehmSWLTD5KatlzX8r  The Beatles         0.733338   \n",
-       "94   4zExFATo8xg8qFfR4H1ZAn  The Beatles         1.364176   \n",
-       "134  77f3aNeabAbOaSB32Sd5QE  The Beatles         1.620131   \n",
-       "168  67tvBtAhsfHBFpuqJ13ZUq  The Beatles         0.924368   \n",
-       "170  1k9tpndMDRwLkNt67Dlg02  The Beatles         1.408837   \n",
-       "172  67VdmhC89bZ6yK2XRys0lA  The Beatles         1.087652   \n",
-       "175  009oOX7tpCPLzRL9AFiBS8  The Beatles         1.242035   \n",
-       "176  5zs8tSd7ZvwBgr4NUmF5zM  The Beatles         0.959827   \n",
-       "177  3mKtIanz0poYgLnRxZrfBO  The Beatles         1.501767   \n",
-       "185  33BGv6xzxHh5E7v3r1hJLL  The Beatles         1.314197   \n",
-       "186  2YHzfuuDFXzoELxJnqM4at  The Beatles         0.626500   \n",
-       "187  3EbGioQyKyf4dycuiPOg3k  The Beatles         0.438356   \n",
-       "188  69d54YOS8TOQiUYjX57XeA  The Beatles         1.601816   \n",
-       "193  4G5YzDD1nCUPwt5y1LQovF  The Beatles         0.901370   \n",
-       "194  7KmRz1oKEwgj9qpfn72OfO  The Beatles         1.509096   \n",
-       "196  3Aqo28W4LLAolYpN3duVJl  The Beatles         1.349222   \n",
-       "199  4dyALlslhDEzwSEr7GteXa  The Beatles         1.246021   \n",
-       "208  5tNjuWwp6FxuWCrKQAMBTj  The Beatles         0.959614   \n",
-       "209  1JPTCjLHEtqofOFmHsfiAH  The Beatles         1.036117   \n",
-       "211  0lLeGCsQlAbEjQBPQQxQ1b  The Beatles         0.998293   \n",
-       "212  55nE9EppLFdb0I1HBg2O2m  The Beatles         0.695489   \n",
-       "214  5IIBY9M2GxHcVja6DA6wsF  The Beatles         1.362221   \n",
-       "216  6xJSJpO6HJwHhu7UaIc8qR  The Beatles         0.585885   \n",
-       "219  3Ltllbv2lbpjP6NgPMNiFg  The Beatles         1.101133   \n",
-       "220  5VsIn7QQqcacePIb0vO0ow  The Beatles         0.465201   \n",
-       "223  33OXG0RTtw0ycGza22tnF6  The Beatles         1.022599   \n",
-       "247  6dsq7Nt5mIFzvm5kIYNORy    Radiohead         0.674272   \n",
-       "255  15ea10YpJIl3mJq75yzqsD    Radiohead         0.952216   \n",
-       "\n",
-       "                                                  name       neg  valence  \\\n",
-       "23                 Can't Buy Me Love - Remastered 2015  0.738387    0.957   \n",
-       "28                             Help! - Remastered 2015  0.823915    0.810   \n",
-       "34                     Eleanor Rigby - Remastered 2015  0.803232    0.845   \n",
-       "46                         Two Of Us - Remastered 2009  0.711080    0.923   \n",
-       "54                     One After 909 - Remastered 2009  0.865737    0.904   \n",
-       "68                   Mean Mr Mustard - Remastered 2009  0.700631    0.967   \n",
-       "93                  Don't Pass Me By - Remastered 2009  0.857831    0.948   \n",
-       "94   Why Don't We Do It In The Road? - Remastered 2009  0.793242    0.951   \n",
-       "134                    Eleanor Rigby - Remastered 2009  0.803232    0.821   \n",
-       "168                    Act Naturally - Remastered 2009  0.722619    0.946   \n",
-       "170             You Like Me Too Much - Remastered 2009  0.773406    0.900   \n",
-       "172            I've Just Seen A Face - Remastered 2009  0.805204    0.917   \n",
-       "175                         No Reply - Remastered 2009  0.781942    0.873   \n",
-       "176                      I'm A Loser - Remastered 2009  0.812114    0.843   \n",
-       "177                  Baby's In Black - Remastered 2009  0.820088    0.862   \n",
-       "185  I Don't Want To Spoil The Party - Remastered 2009  0.817801    0.896   \n",
-       "186                What You're Doing - Remastered 2009  0.751989    0.831   \n",
-       "187  Everybody's Trying To Be My Baby - Remastered ...  0.866985    0.937   \n",
-       "188               A Hard Day's Night - Remastered 2009  0.833309    0.802   \n",
-       "193                      Tell Me Why - Remastered 2009  0.849970    0.819   \n",
-       "194                Can't Buy Me Love - Remastered 2009  0.738387    0.854   \n",
-       "196                 I'll Cry Instead - Remastered 2009  0.863772    0.961   \n",
-       "199                You Can't Do That - Remastered 2009  0.727456    0.962   \n",
-       "208                 It Won't Be Long - Remastered 2009  0.783388    0.868   \n",
-       "209               All I've Got To Do - Remastered 2009  0.721191    0.876   \n",
-       "211                  Don't Bother Me - Remastered 2009  0.824879    0.921   \n",
-       "212                     Little Child - Remastered 2009  0.848886    0.878   \n",
-       "214            Please Mister Postman - Remastered 2009  0.815201    0.962   \n",
-       "216                    Hold Me Tight - Remastered 2009  0.804870    0.963   \n",
-       "219               Devil In Her Heart - Remastered 2009  0.779220    0.964   \n",
-       "220                Not A Second Time - Remastered 2009  0.773805    0.961   \n",
-       "223                           Misery - Remastered 2009  0.814230    0.902   \n",
-       "247                                            15 Step  0.835488    0.848   \n",
-       "255                          Jigsaw Falling Into Place  0.757225    0.818   \n",
-       "\n",
-       "     scaled_ld     gloom  \n",
-       "23    0.521343  0.202768  \n",
-       "28    0.570870  0.275942  \n",
-       "34    0.562401  0.259783  \n",
-       "46    0.290179  0.130498  \n",
-       "54    0.229005  0.136137  \n",
-       "68    0.433774  0.161301  \n",
-       "93    0.234420  0.120451  \n",
-       "94    0.465502  0.197723  \n",
-       "134   0.559261  0.264054  \n",
-       "168   0.304396  0.128762  \n",
-       "170   0.481862  0.212244  \n",
-       "172   0.364208  0.173016  \n",
-       "175   0.420761  0.201287  \n",
-       "176   0.317385  0.182462  \n",
-       "177   0.515903  0.244945  \n",
-       "185   0.447194  0.211604  \n",
-       "186   0.195284  0.141424  \n",
-       "187   0.126365  0.082298  \n",
-       "188   0.552552  0.274521  \n",
-       "193   0.295972  0.189498  \n",
-       "194   0.518588  0.226602  \n",
-       "196   0.460024  0.209207  \n",
-       "199   0.422221  0.164551  \n",
-       "208   0.317307  0.169345  \n",
-       "209   0.345331  0.165114  \n",
-       "211   0.331476  0.163120  \n",
-       "212   0.220555  0.141159  \n",
-       "214   0.464786  0.199616  \n",
-       "216   0.180406  0.087764  \n",
-       "219   0.369147  0.155179  \n",
-       "220   0.136198  0.069540  \n",
-       "223   0.340379  0.170895  \n",
-       "247   0.212783  0.148717  \n",
-       "255   0.314597  0.181482  "
-      ]
-     },
-     "execution_count": 106,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results[(results['valence'] > 0.8) & (results['neg'] > 0.7)]"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "That's interesting. This list contains a lot of the Beatles' most well-known songs. Is there something in this?\n",
-    "\n",
-    "Let's define \"complexity\" as the product of valence and negativity, and see which are the most complext songs."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 107,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>complexity</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>196</th>\n",
-       "      <td>3Aqo28W4LLAolYpN3duVJl</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.349222</td>\n",
-       "      <td>I'll Cry Instead - Remastered 2009</td>\n",
-       "      <td>0.863772</td>\n",
-       "      <td>0.961</td>\n",
-       "      <td>0.460024</td>\n",
-       "      <td>0.209207</td>\n",
-       "      <td>0.830085</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>93</th>\n",
-       "      <td>3OSi8ehmSWLTD5KatlzX8r</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.733338</td>\n",
-       "      <td>Don't Pass Me By - Remastered 2009</td>\n",
-       "      <td>0.857831</td>\n",
-       "      <td>0.948</td>\n",
-       "      <td>0.234420</td>\n",
-       "      <td>0.120451</td>\n",
-       "      <td>0.813223</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>187</th>\n",
-       "      <td>3EbGioQyKyf4dycuiPOg3k</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.438356</td>\n",
-       "      <td>Everybody's Trying To Be My Baby - Remastered ...</td>\n",
-       "      <td>0.866985</td>\n",
-       "      <td>0.937</td>\n",
-       "      <td>0.126365</td>\n",
-       "      <td>0.082298</td>\n",
-       "      <td>0.812365</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>214</th>\n",
-       "      <td>5IIBY9M2GxHcVja6DA6wsF</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.362221</td>\n",
-       "      <td>Please Mister Postman - Remastered 2009</td>\n",
-       "      <td>0.815201</td>\n",
-       "      <td>0.962</td>\n",
-       "      <td>0.464786</td>\n",
-       "      <td>0.199616</td>\n",
-       "      <td>0.784223</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>54</th>\n",
-       "      <td>4311wT21Et0q3vepFwXjTu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.718556</td>\n",
-       "      <td>One After 909 - Remastered 2009</td>\n",
-       "      <td>0.865737</td>\n",
-       "      <td>0.904</td>\n",
-       "      <td>0.229005</td>\n",
-       "      <td>0.136137</td>\n",
-       "      <td>0.782626</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>216</th>\n",
-       "      <td>6xJSJpO6HJwHhu7UaIc8qR</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.585885</td>\n",
-       "      <td>Hold Me Tight - Remastered 2009</td>\n",
-       "      <td>0.804870</td>\n",
-       "      <td>0.963</td>\n",
-       "      <td>0.180406</td>\n",
-       "      <td>0.087764</td>\n",
-       "      <td>0.775090</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>211</th>\n",
-       "      <td>0lLeGCsQlAbEjQBPQQxQ1b</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.998293</td>\n",
-       "      <td>Don't Bother Me - Remastered 2009</td>\n",
-       "      <td>0.824879</td>\n",
-       "      <td>0.921</td>\n",
-       "      <td>0.331476</td>\n",
-       "      <td>0.163120</td>\n",
-       "      <td>0.759713</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>94</th>\n",
-       "      <td>4zExFATo8xg8qFfR4H1ZAn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.364176</td>\n",
-       "      <td>Why Don't We Do It In The Road? - Remastered 2009</td>\n",
-       "      <td>0.793242</td>\n",
-       "      <td>0.951</td>\n",
-       "      <td>0.465502</td>\n",
-       "      <td>0.197723</td>\n",
-       "      <td>0.754373</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>219</th>\n",
-       "      <td>3Ltllbv2lbpjP6NgPMNiFg</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1.101133</td>\n",
-       "      <td>Devil In Her Heart - Remastered 2009</td>\n",
-       "      <td>0.779220</td>\n",
-       "      <td>0.964</td>\n",
-       "      <td>0.369147</td>\n",
-       "      <td>0.155179</td>\n",
-       "      <td>0.751168</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>212</th>\n",
-       "      <td>55nE9EppLFdb0I1HBg2O2m</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.695489</td>\n",
-       "      <td>Little Child - Remastered 2009</td>\n",
-       "      <td>0.848886</td>\n",
-       "      <td>0.878</td>\n",
-       "      <td>0.220555</td>\n",
-       "      <td>0.141159</td>\n",
-       "      <td>0.745322</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "196  3Aqo28W4LLAolYpN3duVJl  The Beatles         1.349222   \n",
-       "93   3OSi8ehmSWLTD5KatlzX8r  The Beatles         0.733338   \n",
-       "187  3EbGioQyKyf4dycuiPOg3k  The Beatles         0.438356   \n",
-       "214  5IIBY9M2GxHcVja6DA6wsF  The Beatles         1.362221   \n",
-       "54   4311wT21Et0q3vepFwXjTu  The Beatles         0.718556   \n",
-       "216  6xJSJpO6HJwHhu7UaIc8qR  The Beatles         0.585885   \n",
-       "211  0lLeGCsQlAbEjQBPQQxQ1b  The Beatles         0.998293   \n",
-       "94   4zExFATo8xg8qFfR4H1ZAn  The Beatles         1.364176   \n",
-       "219  3Ltllbv2lbpjP6NgPMNiFg  The Beatles         1.101133   \n",
-       "212  55nE9EppLFdb0I1HBg2O2m  The Beatles         0.695489   \n",
-       "\n",
-       "                                                  name       neg  valence  \\\n",
-       "196                 I'll Cry Instead - Remastered 2009  0.863772    0.961   \n",
-       "93                  Don't Pass Me By - Remastered 2009  0.857831    0.948   \n",
-       "187  Everybody's Trying To Be My Baby - Remastered ...  0.866985    0.937   \n",
-       "214            Please Mister Postman - Remastered 2009  0.815201    0.962   \n",
-       "54                     One After 909 - Remastered 2009  0.865737    0.904   \n",
-       "216                    Hold Me Tight - Remastered 2009  0.804870    0.963   \n",
-       "211                  Don't Bother Me - Remastered 2009  0.824879    0.921   \n",
-       "94   Why Don't We Do It In The Road? - Remastered 2009  0.793242    0.951   \n",
-       "219               Devil In Her Heart - Remastered 2009  0.779220    0.964   \n",
-       "212                     Little Child - Remastered 2009  0.848886    0.878   \n",
-       "\n",
-       "     scaled_ld     gloom  complexity  \n",
-       "196   0.460024  0.209207    0.830085  \n",
-       "93    0.234420  0.120451    0.813223  \n",
-       "187   0.126365  0.082298    0.812365  \n",
-       "214   0.464786  0.199616    0.784223  \n",
-       "54    0.229005  0.136137    0.782626  \n",
-       "216   0.180406  0.087764    0.775090  \n",
-       "211   0.331476  0.163120    0.759713  \n",
-       "94    0.465502  0.197723    0.754373  \n",
-       "219   0.369147  0.155179    0.751168  \n",
-       "212   0.220555  0.141159    0.745322  "
-      ]
-     },
-     "execution_count": 107,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results['complexity'] = results['valence'] * results['neg']\n",
-    "results.sort_values('complexity', ascending=False).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "There's possibly something in it. The most \"complex\" song has a very upbeat pop tune and very sad lyrics. The others are similarly interesting.\n",
-    "\n",
-    "What about the least \"complex\" songs?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 108,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>lyrical_density</th>\n",
-       "      <th>name</th>\n",
-       "      <th>neg</th>\n",
-       "      <th>valence</th>\n",
-       "      <th>scaled_ld</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>complexity</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>243</th>\n",
-       "      <td>6f6pEjgfTtuRROmJ4a7Gf3</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.393192</td>\n",
-       "      <td>The Numbers</td>\n",
-       "      <td>0.292008</td>\n",
-       "      <td>0.0545</td>\n",
-       "      <td>0.109821</td>\n",
-       "      <td>0.436866</td>\n",
-       "      <td>0.015914</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>146</th>\n",
-       "      <td>0agoaPIy92gPZ6zRhqXarE</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.634931</td>\n",
-       "      <td>Tomorrow Never Knows - Remastered 2009</td>\n",
-       "      <td>0.343599</td>\n",
-       "      <td>0.0556</td>\n",
-       "      <td>0.198372</td>\n",
-       "      <td>0.412609</td>\n",
-       "      <td>0.019104</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>246</th>\n",
-       "      <td>01ZpFhrMMqKPVCwyqXneVp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.218723</td>\n",
-       "      <td>True Love Waits</td>\n",
-       "      <td>0.532206</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.045911</td>\n",
-       "      <td>0.471229</td>\n",
-       "      <td>0.020117</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>272</th>\n",
-       "      <td>53RYTfkLiyZuUZHwJC3Wmm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.276367</td>\n",
-       "      <td>We Suck Young Blood</td>\n",
-       "      <td>0.535358</td>\n",
-       "      <td>0.0378</td>\n",
-       "      <td>0.067027</td>\n",
-       "      <td>0.466795</td>\n",
-       "      <td>0.020237</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>297</th>\n",
-       "      <td>0COiZ7ncho2yi4HotbzgPv</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.349157</td>\n",
-       "      <td>Motion Picture Soundtrack</td>\n",
-       "      <td>0.576808</td>\n",
-       "      <td>0.0425</td>\n",
-       "      <td>0.093690</td>\n",
-       "      <td>0.460916</td>\n",
-       "      <td>0.024514</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>245</th>\n",
-       "      <td>3cual6JOG286qZJmCxKRAT</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.332577</td>\n",
-       "      <td>Tinker Tailor Soldier Sailor Rich Man Poor Man...</td>\n",
-       "      <td>0.477322</td>\n",
-       "      <td>0.0517</td>\n",
-       "      <td>0.087617</td>\n",
-       "      <td>0.453517</td>\n",
-       "      <td>0.024678</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>309</th>\n",
-       "      <td>75YUnz58ajMo2VIIuUFvOV</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.248061</td>\n",
-       "      <td>The Tourist</td>\n",
-       "      <td>0.667864</td>\n",
-       "      <td>0.0400</td>\n",
-       "      <td>0.056658</td>\n",
-       "      <td>0.471724</td>\n",
-       "      <td>0.026715</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>268</th>\n",
-       "      <td>5olWalQH1oVza5D6xJg4oX</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.216752</td>\n",
-       "      <td>Sail To The Moon</td>\n",
-       "      <td>0.605798</td>\n",
-       "      <td>0.0458</td>\n",
-       "      <td>0.045189</td>\n",
-       "      <td>0.469228</td>\n",
-       "      <td>0.027746</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>256</th>\n",
-       "      <td>3uxhyRdWVXp7GQvERQl6fA</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>0.382643</td>\n",
-       "      <td>Videotape</td>\n",
-       "      <td>0.652962</td>\n",
-       "      <td>0.0468</td>\n",
-       "      <td>0.105957</td>\n",
-       "      <td>0.460694</td>\n",
-       "      <td>0.030559</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>112</th>\n",
-       "      <td>0ttMfoND7IQqFSMVOPkELC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>0.799772</td>\n",
-       "      <td>Blue Jay Way - Remastered 2009</td>\n",
-       "      <td>0.812490</td>\n",
-       "      <td>0.0380</td>\n",
-       "      <td>0.258755</td>\n",
-       "      <td>0.461657</td>\n",
-       "      <td>0.030875</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "                        _id  artist_name  lyrical_density  \\\n",
-       "243  6f6pEjgfTtuRROmJ4a7Gf3    Radiohead         0.393192   \n",
-       "146  0agoaPIy92gPZ6zRhqXarE  The Beatles         0.634931   \n",
-       "246  01ZpFhrMMqKPVCwyqXneVp    Radiohead         0.218723   \n",
-       "272  53RYTfkLiyZuUZHwJC3Wmm    Radiohead         0.276367   \n",
-       "297  0COiZ7ncho2yi4HotbzgPv    Radiohead         0.349157   \n",
-       "245  3cual6JOG286qZJmCxKRAT    Radiohead         0.332577   \n",
-       "309  75YUnz58ajMo2VIIuUFvOV    Radiohead         0.248061   \n",
-       "268  5olWalQH1oVza5D6xJg4oX    Radiohead         0.216752   \n",
-       "256  3uxhyRdWVXp7GQvERQl6fA    Radiohead         0.382643   \n",
-       "112  0ttMfoND7IQqFSMVOPkELC  The Beatles         0.799772   \n",
-       "\n",
-       "                                                  name       neg  valence  \\\n",
-       "243                                        The Numbers  0.292008   0.0545   \n",
-       "146             Tomorrow Never Knows - Remastered 2009  0.343599   0.0556   \n",
-       "246                                    True Love Waits  0.532206   0.0378   \n",
-       "272                                We Suck Young Blood  0.535358   0.0378   \n",
-       "297                          Motion Picture Soundtrack  0.576808   0.0425   \n",
-       "245  Tinker Tailor Soldier Sailor Rich Man Poor Man...  0.477322   0.0517   \n",
-       "309                                        The Tourist  0.667864   0.0400   \n",
-       "268                                   Sail To The Moon  0.605798   0.0458   \n",
-       "256                                          Videotape  0.652962   0.0468   \n",
-       "112                     Blue Jay Way - Remastered 2009  0.812490   0.0380   \n",
-       "\n",
-       "     scaled_ld     gloom  complexity  \n",
-       "243   0.109821  0.436866    0.015914  \n",
-       "146   0.198372  0.412609    0.019104  \n",
-       "246   0.045911  0.471229    0.020117  \n",
-       "272   0.067027  0.466795    0.020237  \n",
-       "297   0.093690  0.460916    0.024514  \n",
-       "245   0.087617  0.453517    0.024678  \n",
-       "309   0.056658  0.471724    0.026715  \n",
-       "268   0.045189  0.469228    0.027746  \n",
-       "256   0.105957  0.460694    0.030559  \n",
-       "112   0.258755  0.461657    0.030875  "
-      ]
-     },
-     "execution_count": 108,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "results.sort_values('complexity', ascending=True).head(10)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Interestingly, all of the \"complex\" songs are by The Beatles, while most of the least \"complex\" songs are by Radiohead. How true is that for all songs?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 109,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "<matplotlib.axes._subplots.AxesSubplot at 0x7f622ab505f8>"
-      ]
-     },
-     "execution_count": 109,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
-    {
-     "data": {
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-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622af03908>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "results[results['artist_name'] == 'The Beatles']['complexity'].hist(alpha=0.5, color='blue')\n",
-    "results[results['artist_name'] == 'Radiohead']['complexity'].hist(alpha=0.5, color='red')"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 110,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [],
-   "source": [
-    "# Push the results back into the database\n",
-    "for row in results.itertuples():\n",
-    "    tracks.update_one({'_id': row[1]}, {'$set': {'complexity': row.complexity}})"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Average gloom per album<a name=\"gloomperalbum\"></a>\n",
-    "How close can we easily get to the final plot at the end of the fitteR happieR post?\n",
-    "\n",
-    "First, we find average gloom per album.\n",
-    "\n",
-    "* [Top](#top)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 111,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "defaultdict(int,\n",
-       "            {'03Qh833fEdVT30Pfs93ea6': 0.24623580565335343,\n",
-       "             '0PYyrqs9NXtxPhf0CZkq2L': 0.23500175198141857,\n",
-       "             '19K3IHYeVkUTjcBHGfbCOi': 0.22062175593822878,\n",
-       "             '19RUXBFyM4PpmrLRdtqWbp': 0.3431302979758603,\n",
-       "             '1DBkJIEoeHrTX4WCBQGcCi': 0.28205809775367074,\n",
-       "             '1PULmKbHeOqlkIwcDMNwD4': 0.2284613266716491,\n",
-       "             '1oW3v5Har9mvXnGk0x4fHm': 0.31375539654482865,\n",
-       "             '2Pqkn9Dq2DFtdfkKAeqgMd': 0.2884934384506727,\n",
-       "             '2pCqZLeavM2BMovJXsJEIV': 0.2186076399504195,\n",
-       "             '36lJLPoPPOKNFddTAcirnc': 0.3821905201779125,\n",
-       "             '3OdI6e43crvyAHhaqpxSyz': 0.2121785350158011,\n",
-       "             '3nkEsxmIX0zRNXGAexaHAn': 0.15291310732486194,\n",
-       "             '47bcKzmKgmMPHXNVOWpLiu': 0.17887638062333686,\n",
-       "             '500FEaUzn8lN9zWFyZG5C2': 0.3411762104912795,\n",
-       "             '5XfJmldgWzrc1AIdbBaVZn': 0.2506029443837317,\n",
-       "             '5ju5Ouzan3QwXqQt1Tihbh': 0.22464122677656365,\n",
-       "             '6400dnyeDyD2mIFHfkwHXN': 0.34531516064731943,\n",
-       "             '6Eo5EkmdLvZrONzi046iC2': 0.25747581401566805,\n",
-       "             '6P9yO0ukhOx3dvmhGKeYoC': 0.2684584850649835,\n",
-       "             '6V9YnBmFjWmXCBaUVRCVXP': 0.37361679839282097,\n",
-       "             '6vuykQgDLUCiZ7YggIpLM9': 0.3823911679811044,\n",
-       "             '71Mwd9tntFQYUk4k2DwA0D': 0.21540669157651762,\n",
-       "             '7BgGBZndAvDlKOcwe5rscZ': 0.1751092911259364,\n",
-       "             '7dxKtc08dYeRVHt3p9CZJn': 0.35290227411012665,\n",
-       "             '7eyQXxuf2nGj9d2367Gi5f': 0.3242377357445757,\n",
-       "             '7gDXyW16byCQOgK965BRzn': 0.1772079427962885})"
-      ]
-     },
-     "execution_count": 111,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'gloom': {'$exists': True}}},\n",
-    "    {'$group': {'_id': '$album.id', 'avg_gloom': {'$avg': '$gloom'}}}]\n",
-    "album_glooms = collections.defaultdict(int, {a['_id']: a['avg_gloom'] for a in tracks.aggregate(pipeline)})\n",
-    "album_glooms"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 112,
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>release_date</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>15</th>\n",
-       "      <td>7gDXyW16byCQOgK965BRzn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Please Please Me (Remastered)</td>\n",
-       "      <td>1963-03-22</td>\n",
-       "      <td>0.177208</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14</th>\n",
-       "      <td>3nkEsxmIX0zRNXGAexaHAn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>With The Beatles (Remastered)</td>\n",
-       "      <td>1963-11-22</td>\n",
-       "      <td>0.152913</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12</th>\n",
-       "      <td>71Mwd9tntFQYUk4k2DwA0D</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>A Hard Day's Night (Remastered)</td>\n",
-       "      <td>1964-07-10</td>\n",
-       "      <td>0.215407</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>7BgGBZndAvDlKOcwe5rscZ</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Beatles For Sale (Remastered)</td>\n",
-       "      <td>1964-12-04</td>\n",
-       "      <td>0.175109</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>19K3IHYeVkUTjcBHGfbCOi</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Help! (Remastered)</td>\n",
-       "      <td>1965-08-06</td>\n",
-       "      <td>0.220622</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9</th>\n",
-       "      <td>3OdI6e43crvyAHhaqpxSyz</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Rubber Soul (Remastered)</td>\n",
-       "      <td>1965-12-03</td>\n",
-       "      <td>0.212179</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>8</th>\n",
-       "      <td>0PYyrqs9NXtxPhf0CZkq2L</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Revolver (Remastered)</td>\n",
-       "      <td>1966-08-05</td>\n",
-       "      <td>0.235002</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7</th>\n",
-       "      <td>1PULmKbHeOqlkIwcDMNwD4</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Sgt. Pepper's Lonely Hearts Club Band (Remaste...</td>\n",
-       "      <td>1967-06-01</td>\n",
-       "      <td>0.228461</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>6</th>\n",
-       "      <td>6P9yO0ukhOx3dvmhGKeYoC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Magical Mystery Tour (Remastered)</td>\n",
-       "      <td>1967-11-27</td>\n",
-       "      <td>0.268458</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>03Qh833fEdVT30Pfs93ea6</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>The Beatles (Remastered)</td>\n",
-       "      <td>1968-11-22</td>\n",
-       "      <td>0.246236</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>47bcKzmKgmMPHXNVOWpLiu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Yellow Submarine (Remastered)</td>\n",
-       "      <td>1969-01-17</td>\n",
-       "      <td>0.178876</td>\n",
+       "      <th>30</th>\n",
+       "      <td>3PbRKFafwE7Of8e4dTee72</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Totally Stripped (Live)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>2Pqkn9Dq2DFtdfkKAeqgMd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Abbey Road (Remastered)</td>\n",
-       "      <td>1969-09-26</td>\n",
-       "      <td>0.288493</td>\n",
+       "      <th>31</th>\n",
+       "      <td>5eTqRwTGKPBUiUuN1rFaXD</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Live 1965: Music From Charlie Is My Darling (L...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>2pCqZLeavM2BMovJXsJEIV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Let It Be (Remastered)</td>\n",
-       "      <td>1970-05-08</td>\n",
-       "      <td>0.218608</td>\n",
+       "      <th>32</th>\n",
+       "      <td>3CHu7qW160uqPZHW3TMZ1l</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Shine A Light</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>27</th>\n",
-       "      <td>6400dnyeDyD2mIFHfkwHXN</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Pablo Honey</td>\n",
-       "      <td>1993-02-22</td>\n",
-       "      <td>0.345315</td>\n",
+       "      <th>33</th>\n",
+       "      <td>4FTHynKEtuP7eppERNfjyG</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>A Bigger Bang (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>26</th>\n",
-       "      <td>500FEaUzn8lN9zWFyZG5C2</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The Bends</td>\n",
-       "      <td>1995-03-28</td>\n",
-       "      <td>0.341176</td>\n",
+       "      <th>34</th>\n",
+       "      <td>50UGtgNA5bq1c0BDjPfmbD</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Live Licks</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>25</th>\n",
-       "      <td>7dxKtc08dYeRVHt3p9CZJn</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>OK Computer</td>\n",
-       "      <td>1997-05-28</td>\n",
-       "      <td>0.352902</td>\n",
+       "      <th>35</th>\n",
+       "      <td>0ZGddnvcVzHVHfE3WW1tV5</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Bridges To Babylon (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>24</th>\n",
-       "      <td>19RUXBFyM4PpmrLRdtqWbp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Kid A</td>\n",
-       "      <td>2000-10-01</td>\n",
-       "      <td>0.343130</td>\n",
+       "      <th>36</th>\n",
+       "      <td>4M8Q1L9PZq0xK5tLUpO3jd</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Stripped</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>5ju5Ouzan3QwXqQt1Tihbh</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>1 (Remastered)</td>\n",
-       "      <td>2000-11-13</td>\n",
-       "      <td>0.224641</td>\n",
+       "      <th>37</th>\n",
+       "      <td>62ZT16LY1phGM0O8x5qW1z</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Voodoo Lounge (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>22</th>\n",
-       "      <td>6svTt5o2lUgIrgYDKVmdnD</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>I Might Be Wrong</td>\n",
-       "      <td>2001-01-01</td>\n",
-       "      <td>0.000000</td>\n",
+       "      <th>38</th>\n",
+       "      <td>1W1UJulgICjFDyYIMUwRs7</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Flashpoint</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>23</th>\n",
-       "      <td>6V9YnBmFjWmXCBaUVRCVXP</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Amnesiac</td>\n",
-       "      <td>2001-03-12</td>\n",
-       "      <td>0.373617</td>\n",
+       "      <th>39</th>\n",
+       "      <td>25mfHGJNQkluvIqedXHSx3</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Steel Wheels (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>21</th>\n",
-       "      <td>1oW3v5Har9mvXnGk0x4fHm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Hail To the Thief</td>\n",
-       "      <td>2003-01-01</td>\n",
-       "      <td>0.313755</td>\n",
+       "      <th>40</th>\n",
+       "      <td>1TpcI1LEFVhBvDPSTMPGFG</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Dirty Work</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>20</th>\n",
-       "      <td>6Eo5EkmdLvZrONzi046iC2</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Com Lag: 2+2=5</td>\n",
-       "      <td>2004-03-24</td>\n",
-       "      <td>0.257476</td>\n",
+       "      <th>41</th>\n",
+       "      <td>1WSfNoPDPzgyKFN6OSYWUx</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Dirty Work (Remastered 2009)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>19</th>\n",
-       "      <td>36lJLPoPPOKNFddTAcirnc</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>In Rainbows Disk 2</td>\n",
-       "      <td>2007-01-01</td>\n",
-       "      <td>0.382191</td>\n",
+       "      <th>42</th>\n",
+       "      <td>064eFGemsrDcMvgRZ0gqtw</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Undercover (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>18</th>\n",
-       "      <td>7eyQXxuf2nGj9d2367Gi5f</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>In Rainbows</td>\n",
-       "      <td>2007-12-28</td>\n",
-       "      <td>0.324238</td>\n",
+       "      <th>43</th>\n",
+       "      <td>0hxrNynMDh5QeyALlf1CdS</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Still Life</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>13</th>\n",
-       "      <td>1DBkJIEoeHrTX4WCBQGcCi</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The King Of Limbs</td>\n",
-       "      <td>2011-02-18</td>\n",
-       "      <td>0.282058</td>\n",
+       "      <th>44</th>\n",
+       "      <td>1YvnuYGlblQ5vLnOhaZzpn</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Tattoo You (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>17</th>\n",
-       "      <td>47xaqCsJcYFWqD1gwujl1T</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>TKOL RMX 1234567</td>\n",
-       "      <td>2011-10-10</td>\n",
-       "      <td>0.000000</td>\n",
+       "      <th>45</th>\n",
+       "      <td>2wZgoXS06wSdu9C0ZJOvlc</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Emotional Rescue (2009 Re-Mastered)</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16</th>\n",
-       "      <td>6vuykQgDLUCiZ7YggIpLM9</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>A Moon Shaped Pool</td>\n",
-       "      <td>2016-05-08</td>\n",
-       "      <td>0.382391</td>\n",
+       "      <th>46</th>\n",
+       "      <td>54sqbAXxR1jFfyXb1WvrHK</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Some Girls</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>5XfJmldgWzrc1AIdbBaVZn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Live At The Hollywood Bowl</td>\n",
-       "      <td>2016-09-09</td>\n",
-       "      <td>0.250603</td>\n",
+       "      <th>47</th>\n",
+       "      <td>6FjXxl9VLURGuubdXUn2J3</td>\n",
+       "      <td>The Rolling Stones</td>\n",
+       "      <td>Some Girls (Deluxe Version)</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
        "</div>"
       ],
       "text/plain": [
-       "                       _id  artist_name  \\\n",
-       "15  7gDXyW16byCQOgK965BRzn  The Beatles   \n",
-       "14  3nkEsxmIX0zRNXGAexaHAn  The Beatles   \n",
-       "12  71Mwd9tntFQYUk4k2DwA0D  The Beatles   \n",
-       "11  7BgGBZndAvDlKOcwe5rscZ  The Beatles   \n",
-       "10  19K3IHYeVkUTjcBHGfbCOi  The Beatles   \n",
-       "9   3OdI6e43crvyAHhaqpxSyz  The Beatles   \n",
-       "8   0PYyrqs9NXtxPhf0CZkq2L  The Beatles   \n",
-       "7   1PULmKbHeOqlkIwcDMNwD4  The Beatles   \n",
-       "6   6P9yO0ukhOx3dvmhGKeYoC  The Beatles   \n",
-       "5   03Qh833fEdVT30Pfs93ea6  The Beatles   \n",
-       "4   47bcKzmKgmMPHXNVOWpLiu  The Beatles   \n",
-       "3   2Pqkn9Dq2DFtdfkKAeqgMd  The Beatles   \n",
-       "2   2pCqZLeavM2BMovJXsJEIV  The Beatles   \n",
-       "27  6400dnyeDyD2mIFHfkwHXN    Radiohead   \n",
-       "26  500FEaUzn8lN9zWFyZG5C2    Radiohead   \n",
-       "25  7dxKtc08dYeRVHt3p9CZJn    Radiohead   \n",
-       "24  19RUXBFyM4PpmrLRdtqWbp    Radiohead   \n",
-       "1   5ju5Ouzan3QwXqQt1Tihbh  The Beatles   \n",
-       "22  6svTt5o2lUgIrgYDKVmdnD    Radiohead   \n",
-       "23  6V9YnBmFjWmXCBaUVRCVXP    Radiohead   \n",
-       "21  1oW3v5Har9mvXnGk0x4fHm    Radiohead   \n",
-       "20  6Eo5EkmdLvZrONzi046iC2    Radiohead   \n",
-       "19  36lJLPoPPOKNFddTAcirnc    Radiohead   \n",
-       "18  7eyQXxuf2nGj9d2367Gi5f    Radiohead   \n",
-       "13  1DBkJIEoeHrTX4WCBQGcCi    Radiohead   \n",
-       "17  47xaqCsJcYFWqD1gwujl1T    Radiohead   \n",
-       "16  6vuykQgDLUCiZ7YggIpLM9    Radiohead   \n",
-       "0   5XfJmldgWzrc1AIdbBaVZn  The Beatles   \n",
+       "                       _id         artist_name  \\\n",
+       "0   5XfJmldgWzrc1AIdbBaVZn         The Beatles   \n",
+       "1   5ju5Ouzan3QwXqQt1Tihbh         The Beatles   \n",
+       "2   2pCqZLeavM2BMovJXsJEIV         The Beatles   \n",
+       "3   2Pqkn9Dq2DFtdfkKAeqgMd         The Beatles   \n",
+       "4   47bcKzmKgmMPHXNVOWpLiu         The Beatles   \n",
+       "5   03Qh833fEdVT30Pfs93ea6         The Beatles   \n",
+       "6   6P9yO0ukhOx3dvmhGKeYoC         The Beatles   \n",
+       "7   1PULmKbHeOqlkIwcDMNwD4         The Beatles   \n",
+       "8   0PYyrqs9NXtxPhf0CZkq2L         The Beatles   \n",
+       "9   3OdI6e43crvyAHhaqpxSyz         The Beatles   \n",
+       "10  19K3IHYeVkUTjcBHGfbCOi         The Beatles   \n",
+       "11  7BgGBZndAvDlKOcwe5rscZ         The Beatles   \n",
+       "12  71Mwd9tntFQYUk4k2DwA0D         The Beatles   \n",
+       "13  1DBkJIEoeHrTX4WCBQGcCi           Radiohead   \n",
+       "14  3nkEsxmIX0zRNXGAexaHAn         The Beatles   \n",
+       "15  7gDXyW16byCQOgK965BRzn         The Beatles   \n",
+       "16  6vuykQgDLUCiZ7YggIpLM9           Radiohead   \n",
+       "17  47xaqCsJcYFWqD1gwujl1T           Radiohead   \n",
+       "18  7eyQXxuf2nGj9d2367Gi5f           Radiohead   \n",
+       "19  36lJLPoPPOKNFddTAcirnc           Radiohead   \n",
+       "20  6Eo5EkmdLvZrONzi046iC2           Radiohead   \n",
+       "21  1oW3v5Har9mvXnGk0x4fHm           Radiohead   \n",
+       "22  6svTt5o2lUgIrgYDKVmdnD           Radiohead   \n",
+       "23  6V9YnBmFjWmXCBaUVRCVXP           Radiohead   \n",
+       "24  19RUXBFyM4PpmrLRdtqWbp           Radiohead   \n",
+       "25  7dxKtc08dYeRVHt3p9CZJn           Radiohead   \n",
+       "26  500FEaUzn8lN9zWFyZG5C2           Radiohead   \n",
+       "27  6400dnyeDyD2mIFHfkwHXN           Radiohead   \n",
+       "28  4g9Jfls8z2nbQxj5PiXkiy  The Rolling Stones   \n",
+       "29  4fhWcu56Bbh5wALuTouFVW  The Rolling Stones   \n",
+       "30  3PbRKFafwE7Of8e4dTee72  The Rolling Stones   \n",
+       "31  5eTqRwTGKPBUiUuN1rFaXD  The Rolling Stones   \n",
+       "32  3CHu7qW160uqPZHW3TMZ1l  The Rolling Stones   \n",
+       "33  4FTHynKEtuP7eppERNfjyG  The Rolling Stones   \n",
+       "34  50UGtgNA5bq1c0BDjPfmbD  The Rolling Stones   \n",
+       "35  0ZGddnvcVzHVHfE3WW1tV5  The Rolling Stones   \n",
+       "36  4M8Q1L9PZq0xK5tLUpO3jd  The Rolling Stones   \n",
+       "37  62ZT16LY1phGM0O8x5qW1z  The Rolling Stones   \n",
+       "38  1W1UJulgICjFDyYIMUwRs7  The Rolling Stones   \n",
+       "39  25mfHGJNQkluvIqedXHSx3  The Rolling Stones   \n",
+       "40  1TpcI1LEFVhBvDPSTMPGFG  The Rolling Stones   \n",
+       "41  1WSfNoPDPzgyKFN6OSYWUx  The Rolling Stones   \n",
+       "42  064eFGemsrDcMvgRZ0gqtw  The Rolling Stones   \n",
+       "43  0hxrNynMDh5QeyALlf1CdS  The Rolling Stones   \n",
+       "44  1YvnuYGlblQ5vLnOhaZzpn  The Rolling Stones   \n",
+       "45  2wZgoXS06wSdu9C0ZJOvlc  The Rolling Stones   \n",
+       "46  54sqbAXxR1jFfyXb1WvrHK  The Rolling Stones   \n",
+       "47  6FjXxl9VLURGuubdXUn2J3  The Rolling Stones   \n",
        "\n",
-       "                                                 name release_date     gloom  \n",
-       "15                      Please Please Me (Remastered)   1963-03-22  0.177208  \n",
-       "14                      With The Beatles (Remastered)   1963-11-22  0.152913  \n",
-       "12                    A Hard Day's Night (Remastered)   1964-07-10  0.215407  \n",
-       "11                      Beatles For Sale (Remastered)   1964-12-04  0.175109  \n",
-       "10                                 Help! (Remastered)   1965-08-06  0.220622  \n",
-       "9                            Rubber Soul (Remastered)   1965-12-03  0.212179  \n",
-       "8                               Revolver (Remastered)   1966-08-05  0.235002  \n",
-       "7   Sgt. Pepper's Lonely Hearts Club Band (Remaste...   1967-06-01  0.228461  \n",
-       "6                   Magical Mystery Tour (Remastered)   1967-11-27  0.268458  \n",
-       "5                            The Beatles (Remastered)   1968-11-22  0.246236  \n",
-       "4                       Yellow Submarine (Remastered)   1969-01-17  0.178876  \n",
-       "3                             Abbey Road (Remastered)   1969-09-26  0.288493  \n",
-       "2                              Let It Be (Remastered)   1970-05-08  0.218608  \n",
-       "27                                        Pablo Honey   1993-02-22  0.345315  \n",
-       "26                                          The Bends   1995-03-28  0.341176  \n",
-       "25                                        OK Computer   1997-05-28  0.352902  \n",
-       "24                                              Kid A   2000-10-01  0.343130  \n",
-       "1                                      1 (Remastered)   2000-11-13  0.224641  \n",
-       "22                                   I Might Be Wrong   2001-01-01  0.000000  \n",
-       "23                                           Amnesiac   2001-03-12  0.373617  \n",
-       "21                                  Hail To the Thief   2003-01-01  0.313755  \n",
-       "20                                     Com Lag: 2+2=5   2004-03-24  0.257476  \n",
-       "19                                 In Rainbows Disk 2   2007-01-01  0.382191  \n",
-       "18                                        In Rainbows   2007-12-28  0.324238  \n",
-       "13                                  The King Of Limbs   2011-02-18  0.282058  \n",
-       "17                                   TKOL RMX 1234567   2011-10-10  0.000000  \n",
-       "16                                 A Moon Shaped Pool   2016-05-08  0.382391  \n",
-       "0                          Live At The Hollywood Bowl   2016-09-09  0.250603  "
+       "                                                 name  \n",
+       "0                          Live At The Hollywood Bowl  \n",
+       "1                                      1 (Remastered)  \n",
+       "2                              Let It Be (Remastered)  \n",
+       "3                             Abbey Road (Remastered)  \n",
+       "4                       Yellow Submarine (Remastered)  \n",
+       "5                            The Beatles (Remastered)  \n",
+       "6                   Magical Mystery Tour (Remastered)  \n",
+       "7   Sgt. Pepper's Lonely Hearts Club Band (Remaste...  \n",
+       "8                               Revolver (Remastered)  \n",
+       "9                            Rubber Soul (Remastered)  \n",
+       "10                                 Help! (Remastered)  \n",
+       "11                      Beatles For Sale (Remastered)  \n",
+       "12                    A Hard Day's Night (Remastered)  \n",
+       "13                                  The King Of Limbs  \n",
+       "14                      With The Beatles (Remastered)  \n",
+       "15                      Please Please Me (Remastered)  \n",
+       "16                                 A Moon Shaped Pool  \n",
+       "17                                   TKOL RMX 1234567  \n",
+       "18                                        In Rainbows  \n",
+       "19                                 In Rainbows Disk 2  \n",
+       "20                                     Com Lag: 2+2=5  \n",
+       "21                                  Hail To the Thief  \n",
+       "22                                   I Might Be Wrong  \n",
+       "23                                           Amnesiac  \n",
+       "24                                              Kid A  \n",
+       "25                                        OK Computer  \n",
+       "26                                          The Bends  \n",
+       "27                                        Pablo Honey  \n",
+       "28                                    Blue & Lonesome  \n",
+       "29                                 Havana Moon (Live)  \n",
+       "30                            Totally Stripped (Live)  \n",
+       "31  Live 1965: Music From Charlie Is My Darling (L...  \n",
+       "32                                      Shine A Light  \n",
+       "33                   A Bigger Bang (2009 Re-Mastered)  \n",
+       "34                                         Live Licks  \n",
+       "35              Bridges To Babylon (2009 Re-Mastered)  \n",
+       "36                                           Stripped  \n",
+       "37                   Voodoo Lounge (2009 Re-Mastered)  \n",
+       "38                                         Flashpoint  \n",
+       "39                    Steel Wheels (2009 Re-Mastered)  \n",
+       "40                                         Dirty Work  \n",
+       "41                       Dirty Work (Remastered 2009)  \n",
+       "42                      Undercover (2009 Re-Mastered)  \n",
+       "43                                         Still Life  \n",
+       "44                      Tattoo You (2009 Re-Mastered)  \n",
+       "45                Emotional Rescue (2009 Re-Mastered)  \n",
+       "46                                         Some Girls  \n",
+       "47                        Some Girls (Deluxe Version)  "
       ]
      },
-     "execution_count": 112,
+     "execution_count": 54,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "albums_df = pd.DataFrame(list(albums.find({}, ['release_date', 'name', 'artist_name'])))\n",
-    "\n",
-    "def try_date(d):\n",
-    "    try:\n",
-    "        return datetime.strptime(d, \"%Y-%m-%d\")\n",
-    "    except ValueError:\n",
-    "        return datetime.strptime(d, \"%Y\")\n",
-    "\n",
-    "albums_df['release_date'] = albums_df['release_date'].apply(lambda d: try_date(d))\n",
-    "albums_df['gloom'] = albums_df['_id'].apply(lambda i: album_glooms[i])\n",
-    "albums_df.sort_values('release_date', inplace=True)\n",
-    "albums_df"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 113,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
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P3NpTraZ9Se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\ng/4/Jzf7buWu9R8AAAAASUVORK5CYII=\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622aa361d0>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(albums_df['release_date'], albums_df['gloom'])\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "plt.show()"
+    "pd.DataFrame(list(albums.find({}, ['artist_name', 'name'])))"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "collapsed": true
+   },
    "source": [
-    "One thing that's noticable is the split in time between the groups, and the much shorter period the Beatles were active for."
+    "Manually fix a couple of errors."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 114,
+   "execution_count": 85,
    "metadata": {},
    "outputs": [
     {
      "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>release_date</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>15</th>\n",
-       "      <td>7gDXyW16byCQOgK965BRzn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Please Please Me (Remastered)</td>\n",
-       "      <td>1963-03-22</td>\n",
-       "      <td>0.177208</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14</th>\n",
-       "      <td>3nkEsxmIX0zRNXGAexaHAn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>With The Beatles (Remastered)</td>\n",
-       "      <td>1963-11-22</td>\n",
-       "      <td>0.152913</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12</th>\n",
-       "      <td>71Mwd9tntFQYUk4k2DwA0D</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>A Hard Day's Night (Remastered)</td>\n",
-       "      <td>1964-07-10</td>\n",
-       "      <td>0.215407</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>7BgGBZndAvDlKOcwe5rscZ</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Beatles For Sale (Remastered)</td>\n",
-       "      <td>1964-12-04</td>\n",
-       "      <td>0.175109</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>19K3IHYeVkUTjcBHGfbCOi</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Help! (Remastered)</td>\n",
-       "      <td>1965-08-06</td>\n",
-       "      <td>0.220622</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9</th>\n",
-       "      <td>3OdI6e43crvyAHhaqpxSyz</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Rubber Soul (Remastered)</td>\n",
-       "      <td>1965-12-03</td>\n",
-       "      <td>0.212179</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>8</th>\n",
-       "      <td>0PYyrqs9NXtxPhf0CZkq2L</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Revolver (Remastered)</td>\n",
-       "      <td>1966-08-05</td>\n",
-       "      <td>0.235002</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7</th>\n",
-       "      <td>1PULmKbHeOqlkIwcDMNwD4</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Sgt. Pepper's Lonely Hearts Club Band (Remaste...</td>\n",
-       "      <td>1967-06-01</td>\n",
-       "      <td>0.228461</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>6</th>\n",
-       "      <td>6P9yO0ukhOx3dvmhGKeYoC</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Magical Mystery Tour (Remastered)</td>\n",
-       "      <td>1967-11-27</td>\n",
-       "      <td>0.268458</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>03Qh833fEdVT30Pfs93ea6</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>The Beatles (Remastered)</td>\n",
-       "      <td>1968-11-22</td>\n",
-       "      <td>0.246236</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>47bcKzmKgmMPHXNVOWpLiu</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Yellow Submarine (Remastered)</td>\n",
-       "      <td>1969-01-17</td>\n",
-       "      <td>0.178876</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>2Pqkn9Dq2DFtdfkKAeqgMd</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Abbey Road (Remastered)</td>\n",
-       "      <td>1969-09-26</td>\n",
-       "      <td>0.288493</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>2pCqZLeavM2BMovJXsJEIV</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Let It Be (Remastered)</td>\n",
-       "      <td>1970-05-08</td>\n",
-       "      <td>0.218608</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
       "text/plain": [
-       "                       _id  artist_name  \\\n",
-       "15  7gDXyW16byCQOgK965BRzn  The Beatles   \n",
-       "14  3nkEsxmIX0zRNXGAexaHAn  The Beatles   \n",
-       "12  71Mwd9tntFQYUk4k2DwA0D  The Beatles   \n",
-       "11  7BgGBZndAvDlKOcwe5rscZ  The Beatles   \n",
-       "10  19K3IHYeVkUTjcBHGfbCOi  The Beatles   \n",
-       "9   3OdI6e43crvyAHhaqpxSyz  The Beatles   \n",
-       "8   0PYyrqs9NXtxPhf0CZkq2L  The Beatles   \n",
-       "7   1PULmKbHeOqlkIwcDMNwD4  The Beatles   \n",
-       "6   6P9yO0ukhOx3dvmhGKeYoC  The Beatles   \n",
-       "5   03Qh833fEdVT30Pfs93ea6  The Beatles   \n",
-       "4   47bcKzmKgmMPHXNVOWpLiu  The Beatles   \n",
-       "3   2Pqkn9Dq2DFtdfkKAeqgMd  The Beatles   \n",
-       "2   2pCqZLeavM2BMovJXsJEIV  The Beatles   \n",
-       "\n",
-       "                                                 name release_date     gloom  \n",
-       "15                      Please Please Me (Remastered)   1963-03-22  0.177208  \n",
-       "14                      With The Beatles (Remastered)   1963-11-22  0.152913  \n",
-       "12                    A Hard Day's Night (Remastered)   1964-07-10  0.215407  \n",
-       "11                      Beatles For Sale (Remastered)   1964-12-04  0.175109  \n",
-       "10                                 Help! (Remastered)   1965-08-06  0.220622  \n",
-       "9                            Rubber Soul (Remastered)   1965-12-03  0.212179  \n",
-       "8                               Revolver (Remastered)   1966-08-05  0.235002  \n",
-       "7   Sgt. Pepper's Lonely Hearts Club Band (Remaste...   1967-06-01  0.228461  \n",
-       "6                   Magical Mystery Tour (Remastered)   1967-11-27  0.268458  \n",
-       "5                            The Beatles (Remastered)   1968-11-22  0.246236  \n",
-       "4                       Yellow Submarine (Remastered)   1969-01-17  0.178876  \n",
-       "3                             Abbey Road (Remastered)   1969-09-26  0.288493  \n",
-       "2                              Let It Be (Remastered)   1970-05-08  0.218608  "
+       "<pymongo.results.UpdateResult at 0x7f4550282a88>"
       ]
      },
-     "execution_count": 114,
+     "execution_count": 85,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "beatles_df = albums_df[albums_df['release_date'] < datetime(1971, 1, 1)]\n",
-    "beatles_df"
+    "genius_tracks.update_many({'ctitle': 'revolution i'}, \n",
+    "                          {'$set': {'ctitle': 'revolution 1'}})\n",
+    "genius_tracks.update_many({'ctitle': 'when im sixtyfour'}, \n",
+    "                          {'$set': {'ctitle': 'when im sixty four'}})\n",
+    "genius_tracks.update_many({'ctitle': 'packt like sardines in a crushd tin box'}, \n",
+    "                          {'$set': {'ctitle': 'packt like sardines in a crushed tin box'}})\n",
+    "genius_tracks.update_many({'ctitle': 'a punchup at a wedding'}, \n",
+    "                          {'$set': {'ctitle': 'a punch up at a wedding'}})\n",
+    "genius_tracks.update_many({'ctitle': 'dollars cents'}, \n",
+    "                          {'$set': {'ctitle': 'dollars and cents'}})\n",
+    "genius_tracks.update_many({'ctitle': 'bullet proofi wish i was'}, \n",
+    "                          {'$set': {'ctitle': 'bullet proof i wish i was'}})\n",
+    "genius_tracks.update_many({'ctitle': 'jumpin jack flash'}, \n",
+    "                          {'$set': {'ctitle': 'jumping jack flash'}})\n",
+    "genius_tracks.update_many({'ctitle': 'far away eyes'}, \n",
+    "                          {'$set': {'ctitle': 'faraway eyes'}})"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 115,
+   "execution_count": 86,
    "metadata": {},
    "outputs": [
     {
      "data": {
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       "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ae50128>"
+       "(494, 554, 52)"
       ]
      },
+     "execution_count": 86,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(beatles_df['release_date'].values, beatles_df['gloom'].values, linestyle='-')\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "\n",
-    "for a in beatles_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'gloom': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['gloom'])\n",
+    "in_both = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if tracks.find({'ctitle': g['ctitle']}).count())\n",
+    "genius_only = set(g['ctitle'] for g in genius_tracks.find({}, ['ctitle']) if not tracks.find({'ctitle': g['ctitle']}).count())\n",
+    "spotify_only = set(s['ctitle'] for s in tracks.find({}, ['ctitle']) if not genius_tracks.find({'ctitle': s['ctitle']}).count())\n",
+    "len(in_both), len(genius_only), len(spotify_only)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Copy the lyrics over<a name=\"copylyrics\"></a>\n",
+    "Now can can connect the tracks, let's copy across the lyrics from the Genius collection into the Spotify collection. We'll calculate the lyrical density at the same time.\n",
     "\n",
-    "plt.show()"
+    "* [Top](#top)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 116,
+   "execution_count": 87,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>_id</th>\n",
-       "      <th>artist_name</th>\n",
-       "      <th>name</th>\n",
-       "      <th>release_date</th>\n",
-       "      <th>gloom</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>27</th>\n",
-       "      <td>6400dnyeDyD2mIFHfkwHXN</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Pablo Honey</td>\n",
-       "      <td>1993-02-22</td>\n",
-       "      <td>0.345315</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>26</th>\n",
-       "      <td>500FEaUzn8lN9zWFyZG5C2</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The Bends</td>\n",
-       "      <td>1995-03-28</td>\n",
-       "      <td>0.341176</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>25</th>\n",
-       "      <td>7dxKtc08dYeRVHt3p9CZJn</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>OK Computer</td>\n",
-       "      <td>1997-05-28</td>\n",
-       "      <td>0.352902</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>24</th>\n",
-       "      <td>19RUXBFyM4PpmrLRdtqWbp</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Kid A</td>\n",
-       "      <td>2000-10-01</td>\n",
-       "      <td>0.343130</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>23</th>\n",
-       "      <td>6V9YnBmFjWmXCBaUVRCVXP</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Amnesiac</td>\n",
-       "      <td>2001-03-12</td>\n",
-       "      <td>0.373617</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>21</th>\n",
-       "      <td>1oW3v5Har9mvXnGk0x4fHm</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Hail To the Thief</td>\n",
-       "      <td>2003-01-01</td>\n",
-       "      <td>0.313755</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>20</th>\n",
-       "      <td>6Eo5EkmdLvZrONzi046iC2</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>Com Lag: 2+2=5</td>\n",
-       "      <td>2004-03-24</td>\n",
-       "      <td>0.257476</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>19</th>\n",
-       "      <td>36lJLPoPPOKNFddTAcirnc</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>In Rainbows Disk 2</td>\n",
-       "      <td>2007-01-01</td>\n",
-       "      <td>0.382191</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>18</th>\n",
-       "      <td>7eyQXxuf2nGj9d2367Gi5f</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>In Rainbows</td>\n",
-       "      <td>2007-12-28</td>\n",
-       "      <td>0.324238</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>13</th>\n",
-       "      <td>1DBkJIEoeHrTX4WCBQGcCi</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>The King Of Limbs</td>\n",
-       "      <td>2011-02-18</td>\n",
-       "      <td>0.282058</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16</th>\n",
-       "      <td>6vuykQgDLUCiZ7YggIpLM9</td>\n",
-       "      <td>Radiohead</td>\n",
-       "      <td>A Moon Shaped Pool</td>\n",
-       "      <td>2016-05-08</td>\n",
-       "      <td>0.382391</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
+   "outputs": [],
+   "source": [
+    "for t in tracks.find({}, ['ctitle', 'duration_ms']):\n",
+    "    gts = genius_tracks.find({'ctitle': t['ctitle'], 'lyrics': {'$exists': True}}, ['lyrics', 'original_lyrics'])\n",
+    "    for gt in gts:\n",
+    "        tracks.update_one({'_id': t['_id']}, \n",
+    "                          {'$set': {'lyrics': gt['lyrics'], \n",
+    "                                    'original_lyrics': gt['original_lyrics'],\n",
+    "                                    'lyrical_density': 1000 * len(gt['lyrics'].split()) / t['duration_ms']}})"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Sentiment analysis<a name=\"sentimentanalysis\"></a>\n",
+    "I couldn't find an easily-installable equivalent to the NRC corpus, so I'm using a sentiment analysis API endpoint from [Text Processing](http://text-processing.com/docs/sentiment.html).\n",
+    "\n",
+    "* [Top](#top)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 88,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "for t in tracks.find({'lyrics': {'$exists': True}}, ['lyrics']):\n",
+    "    text = t['lyrics']\n",
+    "    if text:\n",
+    "        query = urllib.parse.urlencode({'text': text}).encode('ascii')\n",
+    "        headers = {'Accept': 'application/json',\n",
+    "                   'User-Agent': 'curl/7.9.8 (i686-pc-linux-gnu) libcurl 7.9.8 (OpenSSL 0.9.6b) (ipv6 enabled)'}\n",
+    "        request = urllib.request.Request('http://text-processing.com/api/sentiment/', \n",
+    "                                 headers=headers, data=query)\n",
+    "        with urllib.request.urlopen(request) as f:\n",
+    "            response = json.loads(f.read().decode('utf-8'))\n",
+    "            tracks.update_one({'_id': t['_id']}, {'$set': {'sentiment': response}})"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 89,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
       "text/plain": [
-       "                       _id artist_name                name release_date  \\\n",
-       "27  6400dnyeDyD2mIFHfkwHXN   Radiohead         Pablo Honey   1993-02-22   \n",
-       "26  500FEaUzn8lN9zWFyZG5C2   Radiohead           The Bends   1995-03-28   \n",
-       "25  7dxKtc08dYeRVHt3p9CZJn   Radiohead         OK Computer   1997-05-28   \n",
-       "24  19RUXBFyM4PpmrLRdtqWbp   Radiohead               Kid A   2000-10-01   \n",
-       "23  6V9YnBmFjWmXCBaUVRCVXP   Radiohead            Amnesiac   2001-03-12   \n",
-       "21  1oW3v5Har9mvXnGk0x4fHm   Radiohead   Hail To the Thief   2003-01-01   \n",
-       "20  6Eo5EkmdLvZrONzi046iC2   Radiohead      Com Lag: 2+2=5   2004-03-24   \n",
-       "19  36lJLPoPPOKNFddTAcirnc   Radiohead  In Rainbows Disk 2   2007-01-01   \n",
-       "18  7eyQXxuf2nGj9d2367Gi5f   Radiohead         In Rainbows   2007-12-28   \n",
-       "13  1DBkJIEoeHrTX4WCBQGcCi   Radiohead   The King Of Limbs   2011-02-18   \n",
-       "16  6vuykQgDLUCiZ7YggIpLM9   Radiohead  A Moon Shaped Pool   2016-05-08   \n",
-       "\n",
-       "       gloom  \n",
-       "27  0.345315  \n",
-       "26  0.341176  \n",
-       "25  0.352902  \n",
-       "24  0.343130  \n",
-       "23  0.373617  \n",
-       "21  0.313755  \n",
-       "20  0.257476  \n",
-       "19  0.382191  \n",
-       "18  0.324238  \n",
-       "13  0.282058  \n",
-       "16  0.382391  "
+       "dict_keys(['track_number', 'time_signature', '_id', 'preview_url', 'sentiment', 'loudness', 'type', 'external_ids', 'uri', 'album_id', 'lyrics', 'lyrical_density', 'tempo', 'danceability', 'href', 'disc_number', 'available_markets', 'analysis_url', 'instrumentalness', 'artist_id', 'name', 'id', 'valence', 'external_urls', 'ctitle', 'track_href', 'duration_ms', 'artist_name', 'explicit', 'speechiness', 'artists', 'album', 'key', 'original_lyrics', 'popularity', 'acousticness', 'liveness', 'mode', 'energy'])"
       ]
      },
-     "execution_count": 116,
+     "execution_count": 89,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "radiohead_df = albums_df[(albums_df['artist_name'] == 'Radiohead') & (albums_df['gloom'] > 0)]\n",
-    "radiohead_df"
+    "tracks.find_one({'sentiment': {'$exists': True}}).keys()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 117,
-   "metadata": {},
+   "execution_count": 90,
+   "metadata": {
+    "scrolled": true
+   },
    "outputs": [
     {
      "data": {
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       "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622aa361d0>"
+       "{'_id': '74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'acousticness': 0.00352,\n",
+       " 'album': {'album_type': 'album',\n",
+       "  'artists': [{'external_urls': {'spotify': 'https://open.spotify.com/artist/22bE4uQ6baNwSHPVcDxLCe'},\n",
+       "    'href': 'https://api.spotify.com/v1/artists/22bE4uQ6baNwSHPVcDxLCe',\n",
+       "    'id': '22bE4uQ6baNwSHPVcDxLCe',\n",
+       "    'name': 'The Rolling Stones',\n",
+       "    'type': 'artist',\n",
+       "    'uri': 'spotify:artist:22bE4uQ6baNwSHPVcDxLCe'}],\n",
+       "  'available_markets': ['GB'],\n",
+       "  'external_urls': {'spotify': 'https://open.spotify.com/album/3PbRKFafwE7Of8e4dTee72'},\n",
+       "  'href': 'https://api.spotify.com/v1/albums/3PbRKFafwE7Of8e4dTee72',\n",
+       "  'id': '3PbRKFafwE7Of8e4dTee72',\n",
+       "  'images': [{'height': 640,\n",
+       "    'url': 'https://i.scdn.co/image/4bd988736fe53e8109488f0f390cdfd5d119762d',\n",
+       "    'width': 640},\n",
+       "   {'height': 300,\n",
+       "    'url': 'https://i.scdn.co/image/b5c53642ccdaac3120aa766ce5e29d9c1b61794f',\n",
+       "    'width': 300},\n",
+       "   {'height': 64,\n",
+       "    'url': 'https://i.scdn.co/image/9c6e2872cbd2688c528d5d43c57651d12c19eec1',\n",
+       "    'width': 64}],\n",
+       "  'name': 'Totally Stripped (Live)',\n",
+       "  'type': 'album',\n",
+       "  'uri': 'spotify:album:3PbRKFafwE7Of8e4dTee72'},\n",
+       " 'album_id': '3PbRKFafwE7Of8e4dTee72',\n",
+       " 'analysis_url': 'https://api.spotify.com/v1/audio-analysis/74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'artist_id': '22bE4uQ6baNwSHPVcDxLCe',\n",
+       " 'artist_name': 'The Rolling Stones',\n",
+       " 'artists': [{'external_urls': {'spotify': 'https://open.spotify.com/artist/22bE4uQ6baNwSHPVcDxLCe'},\n",
+       "   'href': 'https://api.spotify.com/v1/artists/22bE4uQ6baNwSHPVcDxLCe',\n",
+       "   'id': '22bE4uQ6baNwSHPVcDxLCe',\n",
+       "   'name': 'The Rolling Stones',\n",
+       "   'type': 'artist',\n",
+       "   'uri': 'spotify:artist:22bE4uQ6baNwSHPVcDxLCe'}],\n",
+       " 'available_markets': ['GB'],\n",
+       " 'ctitle': 'honky tonk women',\n",
+       " 'danceability': 0.367,\n",
+       " 'disc_number': 1,\n",
+       " 'duration_ms': 293773,\n",
+       " 'energy': 0.962,\n",
+       " 'explicit': False,\n",
+       " 'external_ids': {'isrc': 'GBCBR1500392'},\n",
+       " 'external_urls': {'spotify': 'https://open.spotify.com/track/74tlMxJ8wF0sNp93GBEPdK'},\n",
+       " 'href': 'https://api.spotify.com/v1/tracks/74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'id': '74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'instrumentalness': 0.000172,\n",
+       " 'key': 0,\n",
+       " 'liveness': 0.962,\n",
+       " 'loudness': -5.589,\n",
+       " 'lyrical_density': 0.48336640875778236,\n",
+       " 'lyrics': \"i met a gin-soaked barroom queen in memphis she tried to take me upstairs for a ride she had to heave me right across her shoulder cause i just can't seem to drink it off my mind it's the honky tonk women gimme, gimme, gimme the honky tonk blues i laid a divorcee in new york city i had to put up some kind of a fight the lady then she covered me with roses she blew my nose and then she blew my mind it's the honky tonk women gimme, gimme, gimme the honky tonk blues strollin' on the boulevards of paris naked as the day that i will die the sailors, they're so charming there in paris but i just don't seem to sail you off my mind it's the honky tonk women gimme, gimme, gimme the honky tonk blues\",\n",
+       " 'mode': 1,\n",
+       " 'name': 'Honky Tonk Women - Live',\n",
+       " 'original_lyrics': \"\\n\\nI met a gin-soaked barroom queen in Memphis\\nShe tried to take me upstairs for a ride\\nShe had to heave me right across her shoulder\\nCause I just can't seem to drink it off my mind\\n\\nIt's the honky tonk women\\nGimme, gimme, gimme the honky tonk blues\\n\\nI laid a divorcee in New York City\\nI had to put up some kind of a fight\\nThe lady then she covered me with roses\\nShe blew my nose and then she blew my mind\\n\\nIt's the honky tonk women\\nGimme, gimme, gimme the honky tonk blues\\n\\nStrollin' on the boulevards of Paris\\nNaked as the day that I will die\\nThe sailors, they're so charming there in Paris\\nBut I just don't seem to sail you off my mind\\n\\nIt's the honky tonk women\\nGimme, gimme, gimme the honky tonk blues\\n\\n\",\n",
+       " 'popularity': 19,\n",
+       " 'preview_url': 'https://p.scdn.co/mp3-preview/671f51874a70b3f786fe38b452f2c0fa0e64356b?cid=null',\n",
+       " 'sentiment': {'label': 'neutral',\n",
+       "  'probability': {'neg': 0.6068924635372548,\n",
+       "   'neutral': 0.6112522000410702,\n",
+       "   'pos': 0.3931075364627452}},\n",
+       " 'speechiness': 0.11,\n",
+       " 'tempo': 114.303,\n",
+       " 'time_signature': 4,\n",
+       " 'track_href': 'https://api.spotify.com/v1/tracks/74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'track_number': 2,\n",
+       " 'type': 'audio_features',\n",
+       " 'uri': 'spotify:track:74tlMxJ8wF0sNp93GBEPdK',\n",
+       " 'valence': 0.426}"
       ]
      },
+     "execution_count": 90,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(radiohead_df['release_date'].values, radiohead_df['gloom'].values, linestyle='-')\n",
-    "\n",
-    "for a in radiohead_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'gloom': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['gloom'])\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "plt.show()"
+    "tracks.find_one({'sentiment': {'$exists': True}})"
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": 91,
    "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(606, 65)"
+      ]
+     },
+     "execution_count": 91,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "## Complexity per album<a name=\"complexityovertime\"></a>\n",
-    "Let's generate the same plots for \"complexity\" per album.\n",
-    "\n",
-    "* [Top](#top)"
+    "tracks.find({'sentiment': {'$exists': True}}).count(), tracks.find({'sentiment': {'$exists': False}}).count()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 118,
-   "metadata": {
-    "scrolled": true
-   },
+   "execution_count": 92,
+   "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "defaultdict(int,\n",
-       "            {'03Qh833fEdVT30Pfs93ea6': 0.3031378075765009,\n",
-       "             '0PYyrqs9NXtxPhf0CZkq2L': 0.3955461017790891,\n",
-       "             '19K3IHYeVkUTjcBHGfbCOi': 0.49267873060230916,\n",
-       "             '19RUXBFyM4PpmrLRdtqWbp': 0.19682403824100217,\n",
-       "             '1DBkJIEoeHrTX4WCBQGcCi': 0.23682091199666255,\n",
-       "             '1PULmKbHeOqlkIwcDMNwD4': 0.33137519763673373,\n",
-       "             '1oW3v5Har9mvXnGk0x4fHm': 0.29898400325001767,\n",
-       "             '2Pqkn9Dq2DFtdfkKAeqgMd': 0.28015413095314634,\n",
-       "             '2pCqZLeavM2BMovJXsJEIV': 0.354664325706374,\n",
-       "             '36lJLPoPPOKNFddTAcirnc': 0.1704162869852709,\n",
-       "             '3OdI6e43crvyAHhaqpxSyz': 0.44772169900647624,\n",
-       "             '3nkEsxmIX0zRNXGAexaHAn': 0.5849736696540723,\n",
-       "             '47bcKzmKgmMPHXNVOWpLiu': 0.2953681657492741,\n",
-       "             '500FEaUzn8lN9zWFyZG5C2': 0.23613033343466053,\n",
-       "             '5XfJmldgWzrc1AIdbBaVZn': 0.3884655768099993,\n",
-       "             '5ju5Ouzan3QwXqQt1Tihbh': 0.4001232105218359,\n",
-       "             '6400dnyeDyD2mIFHfkwHXN': 0.22536295726702718,\n",
-       "             '6Eo5EkmdLvZrONzi046iC2': 0.3776567485151355,\n",
-       "             '6P9yO0ukhOx3dvmhGKeYoC': 0.2752720160835255,\n",
-       "             '6V9YnBmFjWmXCBaUVRCVXP': 0.1561887159181926,\n",
-       "             '6vuykQgDLUCiZ7YggIpLM9': 0.12056755508379578,\n",
-       "             '71Mwd9tntFQYUk4k2DwA0D': 0.5490106468656754,\n",
-       "             '7BgGBZndAvDlKOcwe5rscZ': 0.5087387310808495,\n",
-       "             '7dxKtc08dYeRVHt3p9CZJn': 0.16146444373155444,\n",
-       "             '7eyQXxuf2nGj9d2367Gi5f': 0.2913466657800584,\n",
-       "             '7gDXyW16byCQOgK965BRzn': 0.4732550728695838})"
+       "8"
       ]
      },
-     "execution_count": 118,
+     "execution_count": 92,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "pipeline = [\n",
-    "    {'$match': {'gloom': {'$exists': True}}},\n",
-    "    {'$group': {'_id': '$album.id', 'avg_complexity': {'$avg': '$complexity'}}}]\n",
-    "album_complexities = collections.defaultdict(int, {a['_id']: a['avg_complexity'] for a in tracks.aggregate(pipeline)})\n",
-    "album_complexities"
+    "tracks.find({'sentiment': {'$exists': False}, 'lyrics': {'$exists': True}}).count()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 119,
-   "metadata": {
-    "scrolled": true
-   },
+   "execution_count": 97,
+   "metadata": {},
    "outputs": [
     {
      "data": {
       "text/html": [
        "<div>\n",
+       "<style>\n",
+       "    .dataframe thead tr:only-child th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: left;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "</style>\n",
        "<table border=\"1\" class=\"dataframe\">\n",
        "  <thead>\n",
        "    <tr style=\"text-align: right;\">\n",
        "      <th></th>\n",
        "      <th>_id</th>\n",
        "      <th>artist_name</th>\n",
+       "      <th>lyrics</th>\n",
        "      <th>name</th>\n",
-       "      <th>release_date</th>\n",
-       "      <th>gloom</th>\n",
-       "      <th>complexity</th>\n",
        "    </tr>\n",
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>15</th>\n",
-       "      <td>7gDXyW16byCQOgK965BRzn</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Please Please Me (Remastered)</td>\n",
-       "      <td>1963-03-22</td>\n",
-       "      <td>0.177208</td>\n",
-       "      <td>0.473255</td>\n",
+       "      <th>0</th>\n",
+       "      <td>47DgFAFnhfwoSko23P7pz5</td>\n",
+       "      <td>George Martin</td>\n",
+       "      <td></td>\n",
+       "      <td>Yellow Submarine In Pepperland - Remastered 2009</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>14</th>\n",
-       "      <td>3nkEsxmIX0zRNXGAexaHAn</td>\n",
+       "      <th>1</th>\n",
+       "      <td>2z1p43SNSbeowzy8WdYHNk</td>\n",
        "      <td>The Beatles</td>\n",
-       "      <td>With The Beatles (Remastered)</td>\n",
-       "      <td>1963-11-22</td>\n",
-       "      <td>0.152913</td>\n",
-       "      <td>0.584974</td>\n",
+       "      <td></td>\n",
+       "      <td>Flying - Remastered 2009</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>12</th>\n",
-       "      <td>71Mwd9tntFQYUk4k2DwA0D</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>A Hard Day's Night (Remastered)</td>\n",
-       "      <td>1964-07-10</td>\n",
-       "      <td>0.215407</td>\n",
-       "      <td>0.549011</td>\n",
+       "      <th>2</th>\n",
+       "      <td>3gKuywOm38axM8sJGq6Laq</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>MK 1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>7BgGBZndAvDlKOcwe5rscZ</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Beatles For Sale (Remastered)</td>\n",
-       "      <td>1964-12-04</td>\n",
-       "      <td>0.175109</td>\n",
-       "      <td>0.508739</td>\n",
+       "      <th>3</th>\n",
+       "      <td>2uYSbsxAMmK1awUl06T7ix</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>MK 2</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>19K3IHYeVkUTjcBHGfbCOi</td>\n",
-       "      <td>The Beatles</td>\n",
-       "      <td>Help! (Remastered)</td>\n",
-       "      <td>1965-08-06</td>\n",
-       "      <td>0.220622</td>\n",
-       "      <td>0.492679</td>\n",
+       "      <th>4</th>\n",
+       "      <td>1q6X5sJSWQ2QnqvPghR0Kr</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>I Am Citizen Insane</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>4blz5SBUxKbtDNwMWstGNG</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>Where Bluebirds Fly</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>6</th>\n",
+       "      <td>2zYrFer4QGSQkk5aUawfHB</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>Hunting Bears</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>7</th>\n",
+       "      <td>4DPQvbgSM0IdX4O3HOACwL</td>\n",
+       "      <td>Radiohead</td>\n",
+       "      <td></td>\n",
+       "      <td>Treefingers</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
        "</div>"
       ],
       "text/plain": [
-       "                       _id  artist_name                             name  \\\n",
-       "15  7gDXyW16byCQOgK965BRzn  The Beatles    Please Please Me (Remastered)   \n",
-       "14  3nkEsxmIX0zRNXGAexaHAn  The Beatles    With The Beatles (Remastered)   \n",
-       "12  71Mwd9tntFQYUk4k2DwA0D  The Beatles  A Hard Day's Night (Remastered)   \n",
-       "11  7BgGBZndAvDlKOcwe5rscZ  The Beatles    Beatles For Sale (Remastered)   \n",
-       "10  19K3IHYeVkUTjcBHGfbCOi  The Beatles               Help! (Remastered)   \n",
+       "                      _id    artist_name lyrics  \\\n",
+       "0  47DgFAFnhfwoSko23P7pz5  George Martin          \n",
+       "1  2z1p43SNSbeowzy8WdYHNk    The Beatles          \n",
+       "2  3gKuywOm38axM8sJGq6Laq      Radiohead          \n",
+       "3  2uYSbsxAMmK1awUl06T7ix      Radiohead          \n",
+       "4  1q6X5sJSWQ2QnqvPghR0Kr      Radiohead          \n",
+       "5  4blz5SBUxKbtDNwMWstGNG      Radiohead          \n",
+       "6  2zYrFer4QGSQkk5aUawfHB      Radiohead          \n",
+       "7  4DPQvbgSM0IdX4O3HOACwL      Radiohead          \n",
        "\n",
-       "   release_date     gloom  complexity  \n",
-       "15   1963-03-22  0.177208    0.473255  \n",
-       "14   1963-11-22  0.152913    0.584974  \n",
-       "12   1964-07-10  0.215407    0.549011  \n",
-       "11   1964-12-04  0.175109    0.508739  \n",
-       "10   1965-08-06  0.220622    0.492679  "
+       "                                               name  \n",
+       "0  Yellow Submarine In Pepperland - Remastered 2009  \n",
+       "1                          Flying - Remastered 2009  \n",
+       "2                                              MK 1  \n",
+       "3                                              MK 2  \n",
+       "4                               I Am Citizen Insane  \n",
+       "5                               Where Bluebirds Fly  \n",
+       "6                                     Hunting Bears  \n",
+       "7                                       Treefingers  "
       ]
      },
-     "execution_count": 119,
+     "execution_count": 97,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "albums_df['complexity'] = albums_df['_id'].apply(lambda i: album_complexities[i])\n",
-    "beatles_df = albums_df[albums_df['release_date'] < datetime(1971, 1, 1)]\n",
-    "radiohead_df = albums_df[(albums_df['artist_name'] == 'Radiohead') & (albums_df['gloom'] > 0)]\n",
-    "albums_df.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 120,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
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PeH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\n0gWkfWoAAAAASUVORK5CYII=\n",
-      "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622a814d30>"
-      ]
-     },
-     "metadata": {},
-     "output_type": "display_data"
-    }
-   ],
-   "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(beatles_df['release_date'].values, beatles_df['complexity'].values, linestyle='-')\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "\n",
-    "for a in beatles_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'complexity': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['complexity'])\n",
-    "\n",
-    "plt.show()"
+    "pd.DataFrame(list(tracks.find({'sentiment': {'$exists': False}, \n",
+    "                               'lyrics': {'$exists': True}}, \n",
+    "                              ['name', 'artist_name', 'lyrics'])))"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 121,
+   "execution_count": 99,
    "metadata": {},
    "outputs": [
     {
      "data": {
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NwzCMrslKyRuGYRjhJpIrXkUkNm4fEdnL+xsLmUQkkudUKkRkiPc3Fr9NgrjIIyJF+R6DX4jI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\nKXnDMIwYY0reMAwjxvx/dLNl6IZm3tQAAAAASUVORK5CYII=\n",
       "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622ad7a048>"
+       "[{'_id': '47DgFAFnhfwoSko23P7pz5',\n",
+       "  'artist_name': 'George Martin',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'Yellow Submarine In Pepperland - Remastered 2009',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '2z1p43SNSbeowzy8WdYHNk',\n",
+       "  'artist_name': 'The Beatles',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'Flying - Remastered 2009',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '3gKuywOm38axM8sJGq6Laq',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'MK 1',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '2uYSbsxAMmK1awUl06T7ix',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'MK 2',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '1q6X5sJSWQ2QnqvPghR0Kr',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'I Am Citizen Insane',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '4blz5SBUxKbtDNwMWstGNG',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'Where Bluebirds Fly',\n",
+       "  'original_lyrics': '\\n\\n[Distorted \"Somewhere Over The Rainbow\" lyrics]\\n\\n'},\n",
+       " {'_id': '2zYrFer4QGSQkk5aUawfHB',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'Hunting Bears',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'},\n",
+       " {'_id': '4DPQvbgSM0IdX4O3HOACwL',\n",
+       "  'artist_name': 'Radiohead',\n",
+       "  'lyrics': '',\n",
+       "  'name': 'Treefingers',\n",
+       "  'original_lyrics': '\\n\\n[Instrumental]\\n\\n'}]"
       ]
      },
+     "execution_count": 99,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(radiohead_df['release_date'].values, radiohead_df['complexity'].values, linestyle='-')\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "\n",
-    "for a in radiohead_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'complexity': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['complexity'])\n",
-    "\n",
-    "plt.show()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "That isn't what I was expecting. I was expecting the complexity to go up over time, as bands became more adept at contrasting lyrics and melody. It could be because high complexity requires high valence, and bands tend not to become more \"poppy\" over time.\n",
-    "\n",
-    "Let's test that, by also showing the valence of tracks and albums over time."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 122,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "pipeline = [\n",
-    "    {'$match': {'valence': {'$exists': True}}},\n",
-    "    {'$group': {'_id': '$album.id', 'avg_valence': {'$avg': '$valence'}}}]\n",
-    "album_valences = collections.defaultdict(int, {a['_id']: a['avg_valence'] for a in tracks.aggregate(pipeline)})\n",
-    "albums_df['valence'] = albums_df['_id'].apply(lambda i: album_valences[i])\n",
-    "beatles_df = albums_df[albums_df['release_date'] < datetime(1971, 1, 1)]\n",
-    "radiohead_df = albums_df[(albums_df['artist_name'] == 'Radiohead') & (albums_df['gloom'] > 0)]"
+    "list(tracks.find({'sentiment': {'$exists': False}, \n",
+    "                               'lyrics': {'$exists': True}}, \n",
+    "                              ['name', 'artist_name', 'lyrics', 'original_lyrics']))"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 123,
+   "execution_count": 101,
    "metadata": {},
    "outputs": [
     {
      "data": {
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fQf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\n",
       "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622a722198>"
+       "<pymongo.results.UpdateResult at 0x7f454b640bc8>"
       ]
      },
+     "execution_count": 101,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(beatles_df['release_date'].values, beatles_df['complexity'].values, linestyle='-', color='blue')\n",
-    "ax.plot_date(beatles_df['release_date'].values, beatles_df['valence'].values, linestyle='-', color='orange')\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "\n",
-    "for a in beatles_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'complexity': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['complexity'], color='blue')\n",
-    "        ax.scatter(a.release_date, t['valence'], color='orange')\n",
-    "\n",
-    "plt.show()"
+    "tracks.update_many({'lyrics': ''}, {'$unset': {'lyrics': ''}})"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 124,
+   "execution_count": 102,
    "metadata": {},
    "outputs": [
     {
      "data": {
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+      "text/html": [
+       "<div>\n",
+       "<style>\n",
+       "    .dataframe thead tr:only-child th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: left;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
       "text/plain": [
-       "<matplotlib.figure.Figure at 0x7f622a6696a0>"
+       "Empty DataFrame\n",
+       "Columns: []\n",
+       "Index: []"
       ]
      },
+     "execution_count": 102,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
-    "fig, ax = plt.subplots()\n",
-    "ax.plot_date(radiohead_df['release_date'].values, radiohead_df['complexity'].values, linestyle='-', color='blue')\n",
-    "ax.plot_date(radiohead_df['release_date'].values, radiohead_df['valence'].values, linestyle='-', color='orange')\n",
-    "\n",
-    "fig.autofmt_xdate()\n",
-    "\n",
-    "for a in radiohead_df.itertuples():\n",
-    "    for t in tracks.find({'album.id': a[1], 'complexity': {'$exists': True}}):\n",
-    "        ax.scatter(a.release_date, t['complexity'], color='blue')\n",
-    "        ax.scatter(a.release_date, t['valence'], color='orange')\n",
-    "\n",
-    "plt.show()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "It definitely looks like the Beatles changed style over time, with the _White Ablum_ / _Yellow Submarine_ (around 1969) being a glitch in the trend. _Hail to the Thief_ and _Com Lag_ are unusual albums for Radiohead."
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Conclusion<a name=\"conclusion\"></a>\n",
-    "A couple of things have come out of this. \n",
-    "\n",
-    "One is that the original analysis is very sensitive to how the sentiment of lyrics is determined. That means I'm not too confident about the reliability of results from either fitteR-happieR or this notebook.\n",
-    "\n",
-    "Another is that the Beatles are undoubtedly better than Radiohead. The happiest Beatles sonds are happier than anything Radiohead have done, and their saddest songs are about as sad as Radiohead. In just about every measure, the Beatles' range of music is larger, and covers, Radiohead's.\n",
-    "\n",
-    "QED.\n",
-    "\n",
-    "## Next steps\n",
-    "The obvious next step is to analyse a different group. What would Queen or ELO look like? Is Adele more depressing than Radiohead?\n",
-    "\n",
-    "Another approach would be to apply some machine learning / data mining techniques, perhaps to train a better sentiment analyser, or to cluster songs into groups. Which songs by different artists are most similar to each other?\n",
-    "\n",
-    "* [Top](#top)"
+    "pd.DataFrame(list(tracks.find({'sentiment': {'$exists': False}, \n",
+    "                               'lyrics': {'$exists': True}}, \n",
+    "                              ['name', 'artist_name', 'lyrics'])))"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": []
   }
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.2+"
+   "version": "3.5.3"
   }
  },
  "nbformat": 4,