Various, Uriah Heep, Gale Force, The Sweet, Premiata Forneria Marconi, Stephen Dees, Manfred Mann's Earth Band, The Sweet, Scorpions, Heart, Climax Blues Band

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.