The problem with this question for me is that I don’t know who’s dead. Off hand I could name:
Phil Oaks
Otis Redding
Jimi Hendrix
Janis Joplin
Is Joan Baez still kicking?
Ginger Baker?
Dino Valenti?
Country Joe MacDonald?
John Lennon and George Harrison.
Jerry Garcia
Stan Owsley
A couple of the original Jefferson Airplane. Grace Slick looks dead, does that count?
The whole Allman brothers band, I think, died in a plane crash.
Probably a lot more.
Joan’s father died when he was 95, and her mother died last year (IIRC) at the age of 100. I think and hope she’s going to be around for many more years.