Various, John Mayall, B.B. King, Area Code 615, Jake Holmes, The Amboy Dukes, Taste, Ten Wheel Drive, Genya Ravan, John Lee Hooker, Charlie Brown, Manfred Mann Chapter Three, Deep Purple, Free

Detroit Proto-Punk

Pull this thread and you get Michigan guitar noise from 1969 ballrooms to 1999 basements, unbroken.

San Francisco Psychedelia

Ballroom bands who stretched blues and folk into twenty-minute jams, pressed before anyone edited them down.