I've today come across this listing of the artists whose music I have bought or downloaded over the years and have either stored on CD or stick or hard drive. I prepared the list for another query some time ago (probably a couple of years ago).
Bob Dylan, Simon and Garfunkel, Traffic, Cream, Free, Uriah Heep, Janis Joplin, Brian Auger, Julie Driscoll, John Mayall, Fleetwood Mac, Chicken Shack, Robert Johnson, Howlin’ Wolf, B.B. King, Freddie King, The Who, Yes, Queen, The Kinks, Ten Years After, Colosseum, Jethro Tull, Joan Armatrading, Dire Straits, Elvis Presley, Donovan, Johnny Winter, Edgar Winter, Bo Diddley, The Band, Argent, Procul Harum, Vanilla Fudge, Cleo Laine, Rory Gallagher, Eartha Kitt, Bessie Smith, Koko Taylor, Clannad, Christy Moore, Muddy Waters, The Yardbirds, The Ronettes, Memphis Slim, Little Walter, Robert Plant, Vinegar Joe, Elkie Brooks, Georgie Fame, John Lennon, Planxty, The Strawbs, Family, If, Spirit, Egg, Pink Floyd, Soft Machine, Spooky Tooth, Police, Emerson, Lake and Palmer, Sting, Bad Company, Albert King, Chuck Berry, Florence and the Machine, John Lee Hooker, Sonny Boy Williamson I & II, Bachman Turner Overdrive, The Animals, Van Morrison, Alan Price, Them, Led Zeppelin, Joe Cocker, Mott the Hoople, Leonard Cohen, Fox, T. Rex, “Hound Dog” Taylor, David Bowie, Skip Bifferty, Blind Boy Fuller, The Rolling Stones, Lightnin’ Hopkins, Peter Green, Spencer Davis Group, The Eagles, The Beatles, Laura Nyro, Jelly Roll Morton, Joan Baez, Steve Miller Band, The Shirelles, Martha and the Vandellas, Ritchie Blackmore, Love, Little Richard, Jerry Lee Lewis, Ella Fitzgerald, The Corrs, Meat Loaf, Bryan Ferry, Jefferson Airplane/Starship, Rick Wakeman, Leadbelly, It’s A Beautiful Day, Tomorrow, Marianne Faithful, Big Bill Broonzy, Cat Stevens, Albert Collins, Beverley McClellan, Etta James, Louis Armstrong, Thunderclap Newman, Captain Beefheart, Roberta Flack, The Supremes, Sade, Magic Sam, Miranda Sex Garden, The Electric Prunes, The Dubliners, Aretha Franklin, The Pretty Things, Quicksilver Messenger, Memphis Jug Band, Bonnie Rait, Velvet Underground, Mothers of Invention, Richie Havens, Jimi Hendrix, Kevin Coyne, Jake Thackray, Sky, Blind Faith, Joe Cocker, Heavy Jelly, The Faces, Memphis Minnie, Rod Stewart, Billie Holliday, Melanie, Hawkwind, Jeff Beck, King Crimson, Blood, Sweat and Tears, Willie Dixon, The Yardbirds, Canned Heat, Nice, Nirvana, Blind Willie Johnson, Taste, Nazareth, Sinead O’Connor, Focus, Big Joe Turner, Black Widow, Deep Purple, Black Sabbath, Elmore James, Long John Baldry, The Animals, Crosby, Stills, Nash and Young, Santana, Blodwyn Pig, Clarence Gatemouth Brown, Amen Corner, Trees, The Move, Moondog, Buffalo Springfield, Blind Willie McTell, The Chieftans, Fairport Convention, Fotheringay, Mike Oldfield, Nina Simone, Leon Redbone, Tina Turner, Dr. Strangely Strange, Kate Bush,
No particular order (although Bob Dylan's "John Wesley Harding" vinyl album was the first that I bought).