587 events featuring 744 artists [248 headliners] (those in italic were never headliners):

61. Bob Dylan
19. Hannah Scott
16. Laura Marling, Patti Smith
15. Bruce Springsteen, Richard Thompson, Robyn Hitchcock
12. Ryan Adams
11. Martyn Joseph, Slow Club
9. Felice Brothers, Pete Doherty
8. Neil Young, Nick Cave, This Is The Kit
7. Anais Mitchell, Billy Bragg, KT Tunstall, Kimberley Rew, Lucinda Williams, Mark Knopfler, Martin Carthy, Rozi Plain, Sharon Van Etten
6. Ben Folds, Brian Harvey, Brian Wilson, Emma Kupa, John Cale, John Murry, Martin Simpson
5. Jesca Hoop, John Bramwell, Kami Thompson, Model Village, Nadine Shah, Simone Felice, Tallest Man On Earth, Van Morrison, Waterboys
4. Adam Green, Chris Wood, Craig Finn, Emma Swift, Jack White, Jessica Lee Morgan, Kate Rusby, Kris Drever, Lou Reed†, Loudon Wainwright III, Mammoth Penguins, Mark Gamon, Rails, Tape Runs Out, Webb Sisters, Zara Phillips
3. Aoife O'Donovan, Babyshambles, Benmont Tench, Cardinals, Carson McHone, Chris Fox, Chuck Prophet, Conor Oberst, Devon Sproule, Ed Harcourt, Eliza Carthy, Elvis Costello, Frank Turner, Gill Landry, Graham Nash, Gruff Rhys, Gwenifer Raymond, Heritage Orchestra, Hold Steady, I Am Kloot, Jesse Malin, Katie Malco, Laura Veirs, Natalie Prass, Neal Casal, Nick Barraclough, Nora Brown, Paul Brady, Peter Bruntnell, Promise Of The Real, Ronnie Wood, Seth Lakeman, Steve Earle, Wizz Jones
2. Al Jardine, Alasdair Roberts, Ali Cossor, Allison Moorer, Allo Darlin', Amy LaVere, Andy Irvine, Anna Hester, Annie Dressner, Arthur Lee†, Belle and Sebastian, Ben Folds Five, Ben Glover, Beth Orton, Bill Callahan, Bitter Ruin, Blair Dunlop, Bluetones, Bobby Gillespie, Bonny Light Horseman, Brian Fallon, Buick 6, Carsie Blanton, Causton and Walker, Charles Watson, Charlie Fink, Chicks, Chloe Foy, Chrissie Hynde, Christy Moore, Crazy Horse, Crooked Still, Crosby, Stills and Nash, Cut the Mustard, Dan Bern, Dan Wilde, Daniel Romano, Danny and the Champions of the World, Dave Rawlings, Ellie Walker, Emma Gatrill, Ethan Johns, Fenne Lily, First Aid Kit, Fred Abong, Fyfe Dangerfield, Gillian Welch, Grant-Lee Phillips, Howe Gelb, Ian A. Anderson, Jake Bugg, Jarrod Dickenson, Jason Isbell, Jeffrey Lewis, Jenny Adajeyan, Jeremy Harmer, Jolie Holland, Jon Wilks, Jonathan Wilson, Julianna Riolino, Kaia Kater, Kate Miller-Heidke, Kathleen Edwards, Kathryn Williams, Keir Nuttall, Kim Richey, Kristin Hersh, Krystle Warren, LA Edwards, Larkin Poe, Lee Cave-Berry, Leonard Cohen†, Lizzie Hardingham, London Metropolitan Orchestra, Lump, Mae Martin, Magazine, Magpies, Mark Wynn, Martha Wainwright, Martin Harley, Mary Gauthier, Mastersons, Matthew E. White, Mawson's Folly, Megson, Memorial, Mick Taylor, Mike Lindsay, Modeste Hughes, Morris Windsor, Nadia Reid, Nick Mulvey, Nigel Stonier, Patrick Wolf, Paul Goodwin, Paul McCartney, Paul Weller, Peter J Lake, Pippa Evans, Polly Paulusma, Rachel Baiman, Ralph McTell, Randy Newman, Regina Spektor, Roger Chapman, Roger Daltrey, Rolling Stones, Roy Harper, Sam Amidon, Samantha Parton, Seamus Fogarty, Seasick Steve, Self Esteem, Sharon Robinson, Sheri Kershaw, Simi Stone, Sinead O'Connor†, Southside Johnny, Stephanie Coleman, Steve Warner, Stick in the Wheel, Stray Birds, Surfing Magazines, Sweet Baboo, Terry Edwards, Thea Gilmore, Thurston Moore, Tom Petty†, Tony Joe White†, William Crighton, Willy Mason, Zack Hobbs
1. AA Bondy, Abi Wade, Addie Brownlee, Adolphus James, Afternoon, Aldous Harding, Alessi's Ark, Alfie Jones, Ali Dineen, Ali McKenzie, Alice Gerrard, Alison Krauss, Alistair Anderson, Allman Brown, Alynda Segarre, Amanda Palmer, Amazing Snakeheads, Andy Burrows, Andy Jenkins, Angeline Morrison, Attic Lights, Audiobooks, Auld, Avi Buffalo, Baby Copperhead, Baby Dee, Baby Seals, Barb Jungr, Barbarossa, Barns Courtney, Bass & Taylor, Bay Whitaker, Beach Boys, Bear's Den, Beck, Bedouine, Beggars, Bellowhead, Ben Mandelson, Ben Walker, Ben Watt, Benjamin Folke Thomas, Berri Farley, Beth Hedges, Beths, Bhi Bhiman, Bill Ryder-Jones, Bill Wyman, Billy Lockett, Billy Nomates, Birds of Chicago, Bittersweets, Black Crowes, Black Feathers, Blazing Zoos, Blind Boys of Alabama, Blondie Chaplin, Blue Patch, Bob Frank, Bob Harris, Bob Mould, Bobby Monster, Bonnie Prince Billy, Boomtown Rats, Bounty Hounds, Bourgeois and Maurice, Bricolotheque, Bridget St John, Bright Eyes, Britta Persson, Brodka, Brodsky Quartet, Bruce Cockburn, Buke and Gass, C Joynes, Calexico, Cambridge and Walker, Camera Obscura, Campbell King, Cara Dillon, Caravan, Case Hardin, Cat Clyde, Cat Power, Catbear, Cate Le Bon, Centimes, Chaim Tannenbaum, Charlie Parr, Chris Farlowe, Chris Frimley, Chris Thile, Christine Collister, Christof, Ciaran Lavery, Clare and the Reasons, Clinic, Cloud Boat, Cocoon, Cold War Kids, Colin Frid, Coming Soon, Courteeners, Courtney Barnett, Cranberries, Cymbals Eat Guitars, Damien Jurado, Damien Rice, Dan Coyle, Dan Michaelson and the Coastguards, Dan Raza, Dan Whitehouse, Daniel Lanois, Daria Kulesh, Dariush Kanani, Dave Fidler, Dave Letus, Dave Matthews Band, Dave Pegg, Dave Swarbrick, Dave Woodhead, David Ellis, David Gilmour, Dawes, Dawson Smith, Delays, Delta Maid, Derek Smalls, Dive Dive, Dodge Brothers, Doghouse Collective, Dom Flemons, Dom Prag, Don Was, Donovan Woods, Dot Allison, Doves, Eddi Reader, Eddie Thornton, Edie Bens, Eleanor Hewitt, Eleanor McEvoy, Elinor Alicia, Elizabeth & Jameson, Emily Barker, Emily Maguire, Emma Trica, Emmylou Harris, Eric Bibb, Eric Cantona, Eric Clapton, Erik Frandsen, Esya, Ethan Ash, Euros Childs, Everest, Fall, Fat White Family, Fatboy Wilson and Old Viejo Bones, Felipe Perez y Sus Polkeros, Feral Foster, Fern Maddie, Findlay Napier, Firestations, Fisherman's Friends, Flamin' Groovies, Flaming Lips, Flea, Fleet Foxes, Florence Welch, Fly Golden Eagle, Fortitude Valley, Foxygen, Frankie Boyle, Fred's House, Freddie Stevenson, Frederic Lo, Fugs, Gaffa Tape Sandy, Garron Frith, Gary US Bonds, Gaslight Anthem, Gavin James, Georgie, Geraint Watkins, Gil Scott-Heron†, Gina Birch, Girl Ray, Glasvegas, Glen Hansard, Glenn Hodge Banned, Goat Roper Rodeo Band, Gold Heart Assembly, Gold Star, Goldblume, Golden Filter, Gordi, Graham Coxon, Green Gartside, Greg Camburn, Greg Varlotta, Grinderman, Guido Rincon, Guillemots, Half Moon Run, Hannah Fisher, Hannah Georgas, Happyness, Harper, Hercules and Love Affair, Holy Now, Honey and the Bear, Hot Puppies, Howard Ivans, Hudson Taylor, Hugh Cornwell, Hyde and Beast, Ian Felice, Ibeyi, Imlac, In Fear Of Olive, Ipso Facto, Iron & Wine, Jack Watts, Jackson Browne, Jacob Collier, Jake Blount, Jake Xerxes Fussell, James Heather, James Hunter, James Morrison, Jan Bell, Jarlath Henderson, Jasmine Kennedy, Jasmine Rodgers, Jay Fraser, Jenny and Johnny, Jerron Harmer, Jerron Paxton, Jessica Sweetman, Jim Ghedi, Jim Watts, Jimmy Cliff, Jimmy Webb, Joan Armatrading, Joan As Police Woman, Joan Baez, Joan Shelley, Joe Bonamassa, Joe Brooks, Joe Henry, Joe Hill, Joe McKee, Joe Purdy, John Altman, John Fogerty, John Meed, John Otway, John Paul Jones, John Tams, Johnny Depp, Jonathan Jeremiah, Joni Fatora, Joshua Tillman, Josienne Clarke, Judith Owen, Julie Byrne, Karl Blau, Karmadillo, Kashiah Hunter and the Sacred Sounds, Katherine Priddy, Kathryn Tickell, Katie Spencer, Keiron Farrow, Kelvin Davies, Kieran Leonard, Kills, Kimberly Stoker, King Hannah, Kings of Leon, Kitty, Daisy and Lewis, Kurt Vile, L'Rain, Lady Antebellum, Ladysmith Black Mambazo, Lande Hekt, Larks, Later Youth, Lau Noah, Laura Jean, Led To Sea, Lee Forsyth Griffiths, Lera Lynn, Liam Frost, Libertines, Lilith Ai, Lillian Boutte, Linda Thompson, Living Room, Lloyd Cole, Local Honeys, London Contemporary Orchestra, London Youth Choir, Los Lobos, Lovely Eggs, Lowell Levinger, Lowpines, Loyle Carner, Lucy Gaffney, Lucy Wainwright Roche, Luke James Williams, Lumineers, Lydia Bayliss, Lydia Ramsey, Lyla Foy, MG Boulter, Macaulay Culkin, Maddy Prior, Madison Cunningham, Magic Lantern, Magpie Arc, Mahalia, Maisy Beth, Malakai, Mandy Woods, Manu Grace, Marc Ellington, Marc Ribot, Margaret Glaspy, Marissa Saroca, Mark Lanegan, Marker Starling, Marry Waterson, Martin Taylor, Master Musicians of Jajouka, Matt Blake, Matthew and the Atlas, Meffs, Megan Henwood, Melt Yourself Down, Mi'ens, Mic Righteous, Michael Chapman†, Michele Stodart, Mik Whitnall, Militant Girlfriend, Mojo Slide, Molly Tuttle, Mostar Diving Club, Mountain Firework Company, Mountain Peaks, Mumford and Sons, Muntu Valdo, My Girl The River, My Morning Jacket, Nadine Khouri, Nancy Kerr, Naomi Randall, Nathan Ball, National, Navaro, Neil MacDonald, Neko Case, Nell Bryden, Nels Andrews, Nic Dawson Kelly, Nick Harper, Nick Jonah Davis, Nick Lowe, Nicole Atkins, Nils Lofgren, Nina Nesbitt, Nina Violet, Nitty Scott, Noah and the Whale, Odd Creatures, Oka Vanga, Old Crow Medicine Show, Olivia Chaney, Olivia McShane, On The Edge, Only Son, Palma Violets, Papa George, Pat Crilly, Paul Simon, Pete Roe, Peter and Jane, Phantom Limb, Phil Jupitus, Phoebe Bridgers, Pictish Trail, Pierce Brothers, Pixies, Pokey LaFarge, Pony Collaboration, Pretenders, Primal Scream, Pure Beauty, Quarterman, RW Hedges, Ramblin' Jack Elliott, Randy Crawford, Ray Davies, Ray Lamontagne, Read The Room, Reed Stutz, Reuben Hollebon, Rheingans Sisters, Richard Digance, Richmond Fontaine, Rob Auton, Robbie Boyd, Robert Ellis, Robert Plant, Roddy Woomble, Roger Brown, Roger McGuinn, Roseanne Reid, Roxanne de Bastion, Ruby Muse, Rufus Wainwright, Ryder the Eagle, Saint Clair, Sam Airey, Sam Brookes, Sam Carter, Sam Fender, Sam Sallon, Sam Sweeney, Sarah Jarosz, Sarah Siskind, Sarah Walk, Scott Matthews, Scout Niblett, Sean McGowan, Serpent With Feet, Shakey Navel Bones, Sharon Lewis, Sherika Sherard, Shilpa Ray, Shires, Silver Mount Zion Memorial Orchestra, Simeon Jones, Sivu, Sky West, Smoke Fairies, Soap and Skin, Sophie Grant, Sorren Maclean, Soundwalk Collective, Spinning Coin, Staves, Steve Harley, Steve Kopandy, Steve Van Zandt, Steve Winwood, Stevie Nicks, Stewart Murdoch, Stout Brothers, Stranded Horses, Strawberry Generation, String Section, Subways, Suds, Sunday Driver, Supergrass, Tarantula Waltz, Teddy Thompson, Teenage Fanclub, Teitur Lassen, Tenneson Mells, Terence Blacker, Thirst, Thrills, Thursday's Band, Tim Boniface, Tim the Mute, Timber Timbre, Tin Giants, Tiny Dancers, Tom Morello, Tom Odell, Tom Robinson, Tom Waits, Tom Webber, Tommy Emmanuel, Trampolene, Tu-Kay & Ryan, Turner Cody, Umbrella Factory, Unthanks, Valerie June, Van Dyke Parks, Vandeville Falls, Vardo and the Boss, Veala, Victor Velocette, Violent Femmes, Vona Vella, Waddy Wachtel, Ware Ukulele Group, Wave Pictures, White Rabbits, Who, Wiggy, Wild Beasts, Wilko Johnson, Will Sexton, William the Conqueror, Willy Porter, Winter, Winter Wilson, Wintersleep, Wolfman, Ye Vagabonds, Young Waters, Zac Brown, Zoe Konez, Zoe Rahman, yMusic