artists

> dput(head(artists))
structure(list(artist = structure(c(219L, 501L, 205L, 694L, 401L,
542L), .Label = c("!!!", "????", "?????", "?lafur Arnalds", "[unknown]",
"2 Chainz", "2Pac", "3 Doors Down", "30 Seconds to Mars", "3OH!3",
"50 Cent", "A Day to Remember", "A Fine Frenzy", "A Perfect Circle",
"A Tribe Called Quest", "a-ha", "A$AP Rocky", "ABBA", "AC/DC",
"Ace Hood", "Ace of Base", "Adam Lambert", "Adele", "Aerosmith",
"AFI", "Afrojack", "Air", "Airbourne", "Akon", "Al Green", "Alabama Shakes",
"Alanis Morissette", "Alex Clare", "Alexisonfire", "Alice Cooper",
"Alice in Chains", "Alicia Keys", "Alien Ant Farm", "Alkaline Trio",
"All That Remains", "All Time Low", "Aloe Blacc", "Alt-J", "Alter Bridge",
"AlunaGeorge", "America", "Amon Amarth", "Amon Tobin", "Amorphis",
"Amy Macdonald", "Amy Winehouse", "Anamanaguchi", "Anathema",
"Anberlin", "Andrew Bird", "Angels & Airwaves", "Angus & Julia Stone",
"Animal Collective", "Anouk", "Anthrax", "Antonio Vivaldi", "Aphex Twin",
"Apocalyptica", "Apparat", "Arcade Fire", "Arch Enemy", "Architecture in Helsinki",
"Archive", "Arctic Monkeys", "Aretha Franklin", "Ariana Grande",
"Armin van Buuren", "As I Lay Dying", "Asaf Avidan", "Asking Alexandria",
"ATB", "Atlas Genius", "Atmosphere", "Atoms for Peace", "Atreyu",
"Audioslave", "Austra", "Avenged Sevenfold", "Avicii", "Avril Lavigne",
"AWOLNATION", "Azealia Banks", "B.o.B", "Baauer", "Backstreet Boys",
"Bad Religion", "Band of Horses", "Barenaked Ladies", "Basement Jaxx",
"Bassnectar", "Bastille", "Bat for Lashes", "Baths", "Beach Fossils",
"Beach House", "Beastie Boys", "Beck", "Bee Gees", "Beirut",
"Belle and Sebastian", "Ben Harper", "Ben Howard", "Benjamin Francis Leftwich",
"Benny Benassi", "Best Coast", "Beyonc", "Bibio", "Biffy Clyro",
"Big Sean", "Bill Withers", "Billie Holiday", "Billy Idol", "Billy Joel",
"Billy Talent", "Bingo Players", "Birdy", "Bj?rk", "Black Eyed Peas",
"Black Rebel Motorcycle Club", "Black Sabbath", "Blake Shelton",
"Blind Guardian", "blink-182", "Bloc Party", "Blondie", "Bloodhound Gang",
"Blue ?yster Cult", "Blue Foundation", "Blur", "Boards of Canada",
"Bob Dylan", "Bob Marley", "Bob Marley & The Wailers", "Bombay Bicycle Club",
"Bon Iver", "Bon Jovi", "Bonnie Tyler", "Bonobo", "Boston", "Boys Like Girls",
"Brad Paisley", "Brand New", "Breaking Benjamin", "Brian Eno",
"Bright Eyes", "Bring Me the Horizon", "Britney Spears", "Broken Bells",
"Broken Social Scene", "Bruce Springsteen", "Bruno Mars", "Bryan Adams",
"Buffalo Springfield", "Bullet for My Valentine", "Burial", "Bush",
"Busta Rhymes", "C2C", "Cage the Elephant", "Cake", "Calvin Harris",
"Camera Obscura", "Cansei de Ser Sexy", "Capital Cities", "Caribou",
"Carly Rae Jepsen", "Carrie Underwood", "Cascada", "Cat Power",
"Cat Stevens", "Cee Lo Green", "Chairlift", "Charli XCX", "Chase & Status",
"Cher", "Cher Lloyd", "Cheryl Cole", "Chevelle", "Chicago", "Chiddy Bang",
"Childish Gambino", "Children of Bodom", "Chris Brown", "Christina Aguilera",
"Christina Perri", "Chromatics", "Chromeo", "Chuck Berry", "CHVRCHES",
"Ciara", "City and Colour", "Cline Dion", "Clint Mansell", "Cobra Starship",
"CocoRosie", "Cocteau Twins", "Coheed and Cambria", "Colbie Caillat",
"Cold War Kids", "Coldplay", "College", "Common", "Counting Crows",
"Cream", "Creed", "Creedence Clearwater Revival", "Crystal Castles",
"Crystal Fighters", "Cults", "Cut Copy", "Cyndi Lauper", "Cypress Hill",
"Dada Life", "Daft Punk", "Damien Rice", "Danny Brown", "Darius Rucker",
"Dark Tranquillity", "Dashboard Confessional", "Daughter", "Daughtry",
"Dave Matthews Band", "David Bowie", "David Gray", "David Guetta",
"Dead Can Dance", "deadmau5", "Death", "Death Cab for Cutie",
"Death Grips", "Deep Purple", "Deerhunter", "Def Leppard", "Deftones",
"Demi Lovato", "Depeche Mode", "Destiny's Child", "Devendra Banhart",
"Dido", "Die Antwoord", "Digitalism", "Dinosaur Jr.", "Dio",
"Dire Straits", "Dirty Beaches", "Dirty Projectors", "Disclosure",
"Disturbed", "DJ Fresh", "DJ Khaled", "DJ Shadow", "Django Django",
"DMX", "Dope", "Doves", "Dr. Dre", "Drake", "Dream Theater",
"Dropkick Murphys", "Drowning Pool", "Duffy", "Duran Duran",
"Dusty Springfield", "Eagles", "Echo & the Bunnymen", "Ed Sheeran",
"Eddie Vedder", "Editors", "Eels", "Elbow", "Electric Guest",
"Electric Light Orchestra", "Ella Fitzgerald", "Ellie Goulding",
"Elliott Smith", "Elton John", "Eluveitie", "Elvis Costello",
"Elvis Presley", "Emancipator", "Emeli Sand", "Emil?ana Torrini",
"Eminem", "Emmelie de Forest", "Empire of the Sun", "Enigma",
"Ennio Morricone", "Enrique Iglesias", "Enter Shikari", "Enya",
"Epica", "Eric Clapton", "Erykah Badu", "Escape the Fate", "Etta James",
"Europe", "Eurythmics", "Evanescence", "Everything Everything",
"Example", "Explosions in the Sky", "Faith No More", "Faithless",
"Fall Out Boy", "Far East Movement", "Fatboy Slim", "Feed Me",
"Feist", "Fergie", "Fever Ray", "Filter", "Fiona Apple", "First Aid Kit",
"Fitz and the Tantrums", "Five Finger Death Punch", "Fleet Foxes",
"Fleetwood Mac", "Flight Facilities", "Flo Rida", "Flogging Molly",
"Florence + the Machine", "Florida Georgia Line", "Flume", "Flux Pavilion",
"Flying Lotus", "Flyleaf", "Foals", "Foo Fighters", "Foreigner",
"Fort Minor", "Foster the People", "Four Tet", "Frank Ocean",
"Frank Sinatra", "Frank Turner", "Frank Zappa", "Franz Ferdinand",
"Frdric Chopin", "French Montana", "Friendly Fires", "Frightened Rabbit",
"Fugees", "fun.", "Gabrielle Aplin", "Gang Starr", "Garbage",
"Gavin DeGraw", "Genesis", "George Harrison", "George Michael",
"Girls", "Glee Cast", "Gnarls Barkley", "God Is an Astronaut",
"Godsmack", "Godspeed You! Black Emperor", "Gogol Bordello",
"Gojira", "Gold Panda", "Goldfrapp", "Goo Goo Dolls", "Good Charlotte",
"Gorillaz", "Gossip", "Gotye", "Grateful Dead", "Green Day",
"Grimes", "Grizzly Bear", "Groove Armada", "Grouplove", "Guano Apes",
"Guns N' Roses", "Gwen Stefani", "Gym Class Heroes", "Hadouken!",
"Haim", "Halestorm", "Hans Zimmer", "Heart", "Helloween", "HIM",
"Hinder", "Hole", "Hollywood Undead", "Hoobastank", "Hooverphonic",
"Hot Chip", "Howard Shore", "Hurts", "IAMX", "Ice Cube", "Icona Pop",
"Iggy Azalea", "Iggy Pop", "Imagine Dragons", "Imogen Heap",
"In Flames", "Incubus", "Infected Mushroom", "Ingrid Michaelson",
"Inna", "Interpol", "INXS", "Iron & Wine", "Iron Maiden", "J. Cole",
"Jack Johnson", "Jack White", "Jake Bugg", "James Arthur", "James Blake",
"James Blunt", "James Brown", "James Morrison", "James Vincent McMorrow",
"Jamie Cullum", "Jamiroquai", "Janelle Mon?e", "Janet Jackson",
"Janis Joplin", "Jason Aldean", "Jason Derlo", "Jason Mraz",
"Jay-Z", "Jay-Z & Kanye West", "Jeff Buckley", "Jefferson Airplane",
"Jennifer Lopez", "Jessie J", "Jessie Ware", "Jet", "Jethro Tull",
"Jimi Hendrix", "Jimmy Eat World", "Joe Cocker", "Johann Sebastian Bach",
"John Coltrane", "John Frusciante", "John Legend", "John Lennon",
"John Mayer", "John Williams", "Johnny Cash", "Jon Hopkins",
"Joni Mitchell", "Jos Gonz?lez", "Joshua Radin", "Journey", "Joy Division",
"Judas Priest", "Junip", "Justice", "Justin Bieber", "Justin Timberlake",
"Kaiser Chiefs", "Kansas", "Kanye West", "Kasabian", "Kaskade",
"Katatonia", "Kate Bush", "Kate Nash", "Katy Perry", "Kavinsky",
"Ke$ha", "Keane", "Kelis", "Kelly Clarkson", "Kelly Rowland",
"Kendrick Lamar", "Kenny Chesney", "Kid Cudi", "Killswitch Engage",
"Kimbra", "Kings of Convenience", "Kings of Leon", "Kiss", "Klaxons",
"Knife Party", "Kodaline", "Korn", "Kraftwerk", "Krewella", "KT Tunstall",
"Kurt Vile", "Kylie Minogue", "Kyuss", "La Roux", "Labrinth",
"Lacuna Coil", "Lady Antebellum", "Lady Gaga", "Ladytron", "Lamb of God",
"Lana Del Rey", "Laura Marling", "Lauryn Hill", "LCD Soundsystem",
"Led Zeppelin", "Legi?o Urbana", "Lenka", "Lenny Kravitz", "Leona Lewis",
"Leonard Cohen", "Lifehouse", "Lil' Wayne", "Lily Allen", "Limp Bizkit",
"Lindsey Stirling", "Linkin Park", "Lionel Richie", "Little Boots",
"Little Dragon", "Little Mix", "Live", "LMFAO", "Local Natives",
"Loreen", "Los Hermanos", "Lostprophets", "Lou Reed", "Louis Armstrong",
"Ludacris", "Ludovico Einaudi", "Ludwig van Beethoven", "Luke Bryan",
"Lupe Fiasco", "Lykke Li", "Lynyrd Skynyrd", "M?tley Cre", "M.I.A.",
"M83", "Mac Miller", "Machine Head", "Macklemore", "Macklemore & Ryan Lewis",
"Madeon", "Madonna", "Major Lazer", "Mando Diao", "Manic Street Preachers",
"Manowar", "Manu Chao", "Mariah Carey", "Marilyn Manson", "Marina & the Diamonds",
"Maroon 5", "Martin Solveig", "Marvin Gaye", "Mary J. Blige",
"Massive Attack", "Mastodon", "Mat Kearney", "Matchbox Twenty",
"Matisyahu", "Matt & Kim", "Mayday Parade", "Mazzy Star", "Megadeth",
"Men at Work", "Meshuggah", "Metallica", "Metric", "Metronomy",
"MGMT", "Michael Bubl", "Michael Jackson", "Miguel", "Miike Snow",
"Mika", "Mikal Cronin", "Miles Davis", "Miles Kane", "Miley Cyrus",
"Miranda Lambert", "Misfits", "Moby", "Modest Mouse", "Mogwai",
"Morcheeba", "Morrissey", "Mos Def", "Mot?rhead", "Mount Kimbie",
"MS MR", "Mudvayne", "Muse", "My Bloody Valentine", "My Chemical Romance",
"My Morning Jacket", "Nancy Sinatra", "Nas", "Nat King Cole",
"Natalie Imbruglia", "Natasha Bedingfield", "Naughty Boy", "Ne-Yo",
"Neil Young", "Nelly", "Nelly Furtado", "Neon Indian", "Neon Trees",
"Nero", "Netsky", "Neutral Milk Hotel", "New Found Glory", "New Order",
"Nick Cave and the Bad Seeds", "Nick Drake", "Nickelback", "Nicki Minaj",
"Nicolas Jaar", "Nightwish", "Nina Simone", "Nine Inch Nails",
"Nirvana", "No Doubt", "Noah and the Whale", "NOFX", "Norah Jones",
"Nouvelle Vague", "Oasis", "Of Monsters and Men", "of Montreal",
"OK Go", "Olly Murs", "One Direction", "OneRepublic", "Opeth",
"Otis Redding", "OutKast", "Owl City", "Ozzy Osbourne", "P!nk",
"P.O.D.", "Panic! At the Disco", "Pantera", "Paolo Nutini", "Papa Roach",
"Paramore", "Parkway Drive", "Parov Stelar", "Passenger", "Passion Pit",
"Patti Smith", "Paul McCartney", "Paul Simon", "Pavement", "Pearl Jam",
"Pendulum", "Pet Shop Boys", "Peter Bjorn and John", "Peter Gabriel",
"Phantogram", "Phil Collins", "Phillip Phillips", "Phoenix",
"Phosphorescent", "Pierce The Veil", "Pink", "Pink Floyd", "Pitbull",
"Pixies", "PJ Harvey", "Placebo", "Plain White T's", "Poets of the Fall",
"Porcupine Tree", "Porter Robinson", "Portishead", "Portugal. The Man",
"Pretty Lights", "Primal Scream", "Prince", "PSY", "Public Enemy",
"Puddle of Mudd", "Pulp", "Purity Ring", "Pusha T", "Queen",
"Queens of the Stone Age", "R?yksopp", "R. Kelly", "R.E.M.",
"Ra Ra Riot", "Radical Face", "Radiohead", "Rage Against the Machine",
"Rainbow", "Rammstein", "Ramones", "Rancid", "Ratatat", "Ray Charles",
"Ray LaMontagne", "Razorlight", "Real Estate", "Red", "Red Hot Chili Peppers",
"Regina Spektor", "Rhye", "Rick Ross", "Rihanna", "Rilo Kiley",
"Rise Against", "Rita Ora", "RJD2", "Rob Zombie", "Robbie Williams",
"Robin Thicke", "Robyn", "Rod Stewart", "Rodriguez", "Roxette",
"Roxy Music", "Roy Orbison", "Rudimental", "Run-D.M.C.", "Rush",
"Rusko", "Ryan Adams", "Sabaton", "Sade", "Sam Cooke", "Santana",
"Santigold", "Sara Bareilles", "Sarah McLachlan", "Savages",
"SBTRKT", "ScHoolboy Q", "Scissor Sisters", "Scorpions", "Seal",
"Sean Paul", "Sebastian Ingrosso", "Seether", "Selena Gomez",
"Selena Gomez & the Scene", "Sepultura", "Serj Tankian", "Sex Pistols",
"Shakira", "She & Him", "Sheryl Crow", "Shinedown", "Sia", "Sick Puppies",
"Sigur R?s", "Silverstein", "Silversun Pickups", "Simon & Garfunkel",
"Simple Minds", "Simple Plan", "Siouxsie and the Banshees", "Skid Row",
"Skillet", "Skrillex", "Slash", "Slayer", "Sleeping with Sirens",
"Sleigh Bells", "Slipknot", "Smash Mouth", "Snoop Dogg", "Snow Patrol",
"Soilwork", "Solange", "Sonata Arctica", "Sonic Youth", "Soundgarden",
"Spice Girls", "Spoon", "St. Vincent", "Staind", "Starfucker",
"Stars", "Static-X", "Steppenwolf", "Stereophonics", "Steve Miller Band",
"Stevie Wonder", "Sting", "Stone Sour", "Stone Temple Pilots",
"Sub Focus", "Sublime", "Suede", "Sufjan Stevens", "Sum 41",
"Supergrass", "Supertramp", "Survivor", "Swedish House Mafia",
"Switchfoot", "System of a Down", "T. Rex", "t.A.T.u.", "T.I.",
"Taio Cruz", "Taking Back Sunday", "Talking Heads", "Tame Impala",
"Taylor Swift", "Tears for Fears", "Tegan and Sara", "Tenacious D",
"The 1975", "The All-American Rejects", "The Allman Brothers Band",
"The Animals", "The Antlers", "The Avett Brothers", "The Band",
"The Band Perry", "The Beach Boys", "The Beatles", "The Black Keys",
"The Byrds", "The Cardigans", "The Chemical Brothers", "The Cinematic Orchestra",
"The Civil Wars", "The Clash", "The Cranberries", "The Crystal Method",
"The Cure", "The Dandy Warhols", "The Dead Weather", "The Decemberists",
"The Dillinger Escape Plan", "The Doors", "The Drums", "The Flaming Lips",
"The Fratellis", "The Fray", "The Game", "The Gaslight Anthem",
"The Glitch Mob", "The Head And The Heart", "The Heavy", "The Hives",
"The Horrors", "The Jackson 5", "The Jesus and Mary Chain", "The Jimi Hendrix Experience",
"The Joy Formidable", "The Killers", "The Kills", "The Kinks",
"The Knife", "The Kooks", "The Last Shadow Puppets", "The Libertines",
"The Lonely Island", "The Lumineers", "The Maccabees", "The Magnetic Fields",
"The Mars Volta", "The Mountain Goats", "The Naked and Famous",
"The National", "The Neighbourhood", "The Notorious B.I.G.",
"The Offspring", "The Police", "The Postal Service", "The Pretty Reckless",
"The Prodigy", "The Pussycat Dolls", "The Raconteurs", "The Rapture",
"The Rasmus", "The Red Jumpsuit Apparatus", "The Rolling Stones",
"The Roots", "The Saturdays", "The Script", "The Shins", "The Smashing Pumpkins",
"The Smiths", "The Sounds", "The Stone Roses", "The Stooges",
"The Stranglers", "The Strokes", "The Subways", "The Tallest Man on Earth",
"The Temper Trap", "The Temptations", "The Throne", "The Ting Tings",
"The Used", "The Vaccines", "The Velvet Underground", "The Verve",
"The Walkmen", "The Wanted", "The Weeknd", "The White Stripes",
"The Whitest Boy Alive", "The Who", "The Wombats", "The xx",
"Them Crooked Vultures", "Theory of a Deadman", "Thievery Corporation",
"Thin Lizzy", "Third Eye Blind", "Thom Yorke", "Thousand Foot Krutch",
"Three Days Grace", "Tim McGraw", "Timbaland", "Tinie Tempah",
"Tisto", "TLC", "Tlpopmusik", "Tokyo Police Club", "Tom Odell",
"Tom Petty", "Tom Petty and The Heartbreakers", "Tom Waits",
"Tool", "Tori Amos", "Toro y Moi", "Totally Enormous Extinct Dinosaurs",
"Toto", "Tracy Chapman", "Train", "Travis", "Trentem?ller", "Trey Songz",
"Tricky", "Trivium", "TV on the Radio", "Twin Shadow", "Two Door Cinema Club",
"Tycho", "Tyga", "U2", "Underworld", "UNKLE", "Unknown Mortal Orchestra",
"Usher", "Vampire Weekend", "Van Halen", "Van Morrison", "Violent Femmes",
"Volbeat", "Wale", "Walk the Moon", "Warpaint", "Washed Out",
"Wavves", "Weezer", "White Lies", "Whitesnake", "Whitney Houston",
"Wilco", "Wild Nothing", "Will Smith", "will.i.am", "Within Temptation",
"Wiz Khalifa", "Wolfgang Amadeus Mozart", "Wolfmother", "Woodkid",
"Wu-Tang Clan", "XXYYXX", "Yann Tiersen", "Yeah Yeah Yeahs",
"Yeasayer", "Yellowcard", "Yes", "Yo La Tengo", "You Me at Six",
"Young Jeezy", "Young the Giant", "Youth Lagoon", "Zac Brown Band",
"Zaz", "Zedd", "Zero 7", "ZZ Top"), class = "factor"), tag1 = structure(c(37L,
41L, 102L, 5L, 59L, 55L), .Label = c("", "80s", "acoustic", "Alt-country",
"alternative", "alternative metal", "alternative rock", "ambient",
"blues", "blues rock", "Bossa Nova", "brazilian", "breakcore",
"british", "britpop", "chillout", "chillwave", "chiptune", "christian rock",
"classic rock", "Classical", "comedy", "country", "dance", "dancehall",
"danish", "death metal", "deathcore", "Disco", "doom metal",
"downtempo", "dream pop", "Drum and bass", "dubstep", "electro",
"electro house", "electronic", "electropop", "emo", "experimental",
"female vocalists", "folk", "folk metal", "french", "funk", "Garage Rock",
"glam rock", "glitch", "Gothic Metal", "Grime", "Grunge", "gypsy punk",
"hard rock", "heavy metal", "Hip-Hop", "horror punk", "House",
"idm", "indie", "indie pop", "indie rock", "industrial", "industrial metal",
"instrumental", "irish", "jazz", "k-pop", "Lo-Fi", "Love Metal",
"mathcore", "Melodic Death Metal", "metal", "metalcore", "minimal",
"musical", "mysterious", "new age", "new rave", "new wave", "Nu Metal",
"nu-jazz", "oldies", "piano", "pop", "pop punk", "pop rock",
"post-hardcore", "post-punk", "post-rock", "Power metal", "Progressive metal",
"Progressive rock", "psychedelic", "Psychedelic Rock", "psytrance",
"punk", "punk rock", "rap", "rapcore", "reggae", "rnb", "rock",
"Rock and Roll", "rock n roll", "russian rock", "Scottish", "shoegaze",
"singer-songwriter", "ska", "soul", "Soundtrack", "Southern Rock",
"Stoner Rock", "symphonic metal", "synthpop", "thrash metal",
"trance", "trap", "trip-hop", "turntablism", "violin"), class = "factor"),
    tag2 = structure(c(73L, 76L, 10L, 12L, 78L, 158L), .Label = c("",
    "60s", "8-bit", "80s", "90s", "acid jazz", "acoustic", "All",
    "Alt-country", "alternative", "alternative metal", "alternative rock",
    "ambient", "American Idol", "baroque", "big beat", "black metal",
    "Blake Shelton", "blues", "blues rock", "boybands", "brazilian rock",
    "breakbeat", "british", "britpop", "Canadian", "celtic",
    "chillout", "chillwave", "christian rock", "classic rock",
    "Classical", "comedy", "dance", "death metal", "desert rock",
    "Disco", "Disney", "downtempo", "dream pop", "Drum and bass",
    "dubstep", "electro", "electro house", "Electroclash", "electronic",
    "electropop", "emo", "emocore", "ethereal", "Eurovision",
    "experimental", "female vocalist", "female vocalists", "folk",
    "folk rock", "french", "funk", "Fusion", "future garage",
    "Garage Rock", "Girl Groups", "glam rock", "glitch-hop",
    "Gothic Metal", "Gothic Rock", "groove metal", "Grunge",
    "hard rock", "hardcore", "heavy metal", "Hip-Hop", "House",
    "icelandic", "idm", "indie", "indie pop", "indie rock", "industrial metal",
    "industrial rock", "instrumental", "interessant", "irish",
    "israeli", "j-hip hop", "jazz", "jewish", "jungle", "Kenny Chesney",
    "Korean", "latin", "liquid funk", "Lo-Fi", "math metal",
    "math rock", "Melodic Death Metal", "metal", "metalcore",
    "modern country", "motown", "mpb", "Neo-Soul", "new country",
    "new rave", "new wave", "no wave", "noise pop", "Nu Metal",
    "oldies", "pagan metal", "piano", "pop", "pop punk", "pop rock",
    "post-punk", "Power metal", "prank", "progressive death metal",
    "Progressive House", "Progressive metal", "Progressive rock",
    "proto-punk", "psychedelic", "Psychedelic Rock", "punk",
    "punk rock", "r&b", "rap", "rapcore", "reggae", "Reggaeton",
    "rhythm and blues", "rnb", "rock", "roots reggae", "russian",
    "saxophone", "screamo", "shoegaze", "singer-songwriter",
    "soul", "Soundtrack", "Southern Rock", "speed metal", "Stoner Rock",
    "swedish", "swing", "synthpop", "Technical Death Metal",
    "techno", "thrash metal", "Tim McGraw", "trance", "trancecore",
    "trip-hop", "trumpet", "underground hip-hop", "underground rap",
    "viking metal", "X factor"), class = "factor"), tag3 = structure(c(38L,
    105L, 26L, 166L, 9L, 161L), .Label = c("", "60s", "70s",
    "8-bit", "80s", "90s", "acoustic", "Alt-country", "alternative",
    "alternative metal", "alternative rap", "alternative rock",
    "ambient", "australian", "bass", "big beat", "bluegrass",
    "blues", "blues rock", "Bob Marley", "brad paisley", "brazilian",
    "breakbeat", "breakcore", "british", "britpop", "Brostep",
    "Canadian", "chill", "chillout", "chillwave", "Chris Brown",
    "classic rock", "Classical", "composers", "contemporary classical",
    "country pop", "dance", "dance-punk", "darkwave", "death metal",
    "deep house", "depressive rock", "Dirty South", "Disney",
    "dnb", "downtempo", "dream pop", "Drum n Bass", "dubstep",
    "dutch", "easy listening", "electro", "electro hop", "Electro Pop",
    "electronic", "electronica", "electropop", "emo", "emocore",
    "epic heavy metal", "eurovision 2013", "experimental", "experimental rap",
    "Female fronted metal", "female vocalists", "finnish", "folk",
    "folk rock", "folktronica", "freak folk", "free jazz", "french",
    "funk", "funky house", "Fusion", "future garage", "Gangsta Rap",
    "Garage Punk", "Garage Rock", "german", "Girl Groups", "glam",
    "glam rock", "glee", "glitch-hop", "Gothic Metal", "Grime",
    "groove metal", "Grunge", "guitar", "Gypsy", "hair metal",
    "hard rock", "hardcore", "heavy metal", "hip hop", "Hip-Hop",
    "horror punk", "House", "icelandic", "idm", "indie", "indie folk",
    "indie pop", "indie rock", "industrial", "instrumental",
    "instrumental hip-hop", "irish", "Jam", "Jason Aldean", "jazz",
    "Jazz Rock", "justin bieber", "Kanye West", "latin", "Lo-Fi",
    "madchester", "male vocalists", "Melodic Death Metal", "melodic hardcore",
    "melodic metal", "melodic metalcore", "metal", "miami", "modern country",
    "motown", "Neo-Soul", "new country", "new rave", "new wave",
    "next level beats", "nickelodeon", "noise rock", "norwegian",
    "Nu Metal", "NWOBHM", "old school", "oldies", "one direction",
    "piano", "piano rock", "polish", "political", "pop", "pop punk",
    "pop rock", "post-grunge", "post-punk", "post-rock", "powerpop",
    "progressive death metal", "Progressive House", "Progressive metal",
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