Various, John Mayall & The Bluesbreakers, Tony McPhee, Savoy Brown, Eric Clapton, Jimmy Page, Dharma Blues Band, Jeremy Spencer, Eric Clapton, Jimmy Page, Jeremy Spencer, Dharma Blues Band, Eric Clapton, Jimmy Page, Jimmy Page, Tony McPhee

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.