What are you listening to ?
Me, shop music usually consists of The Blasters, Reverend Horton Heat, Social Distortion, Stray Cats, Delta Bombers, Big Bad VooDoo Daddy and Room full of Blues tossed in for a nice rounded mix.
40 years of "Main stream" Rock burned me out and i went back and found some of the obscure music I liked and expanded it from there.
Cliff Ramsdell