In no particular order, over 4 decades. I'm positive I'm overlooking quite a few.
Montrose
Lynyrd Skynyrd
Outlaws
Roxy Music
Psychedelic Furs
Pretenders
Van Morrison
Tragically Hip
Willie Nelson
Johhny Winter
Edgar Winter
Rory Gallagher
Muddy Waters
Rolling Stones
Buddy Guy
Steve Earle
Todd Rundgren/Utopia
English Beat
Big Head Todd & The Monsters
Linkin Park
Collective Soul
Spoon
My Morning Jacket
Widespread Panic
Dead Kennedys
FM
Blues Traveler
Miles Davis
Spyro Gyra
David Bowie
NIN
Frank Zappa
Journey
Santana
Shawn Colvin
Yes
Jeff Beck
Aerosmith
Jethro Tull
Thompson Twins
Steely Dan
Wallflowers
Pat Metheny
Pat Travers
Rosington Collins Band
Tedeschi-Trucks band
Devo
Jon Hiatt
North Mississippi All Stars
10000 Maniacs
Joe Jackson
Average White Band
The Hounds
Off Broadway
The Romantics
Poi Dog Pondering
Starship
Peter Frampton
UFO
Steve Winwood
Eric Clapton
Robert Cray
Sonny Landreth
John McLaughlin
Jimmy Vaughan
Stevie Ray Vaughan
BB King
Vince Gill
Sheryl Crow
John Mayer
Los Lobos
Robbie Robertson
Montrose
Lynyrd Skynyrd
Outlaws
Roxy Music
Psychedelic Furs
Pretenders
Van Morrison
Tragically Hip
Willie Nelson
Johhny Winter
Edgar Winter
Rory Gallagher
Muddy Waters
Rolling Stones
Buddy Guy
Steve Earle
Todd Rundgren/Utopia
English Beat
Big Head Todd & The Monsters
Linkin Park
Collective Soul
Spoon
My Morning Jacket
Widespread Panic
Dead Kennedys
FM
Blues Traveler
Miles Davis
Spyro Gyra
David Bowie
NIN
Frank Zappa
Journey
Santana
Shawn Colvin
Yes
Jeff Beck
Aerosmith
Jethro Tull
Thompson Twins
Steely Dan
Wallflowers
Pat Metheny
Pat Travers
Rosington Collins Band
Tedeschi-Trucks band
Devo
Jon Hiatt
North Mississippi All Stars
10000 Maniacs
Joe Jackson
Average White Band
The Hounds
Off Broadway
The Romantics
Poi Dog Pondering
Starship
Peter Frampton
UFO
Steve Winwood
Eric Clapton
Robert Cray
Sonny Landreth
John McLaughlin
Jimmy Vaughan
Stevie Ray Vaughan
BB King
Vince Gill
Sheryl Crow
John Mayer
Los Lobos
Robbie Robertson