Various, Raspberries, Argent, Golden Earring, The J. Geils Band, Loggins And Messina, The Hollies, Elton John, Eric Clapton, Foghat, Blues Image, Bachman-Turner Overdrive, David Essex

Seattle Grunge

Heavy riffs played by people raised on punk, recorded cheap in the Pacific Northwest and then sold worldwide.

Detroit Proto-Punk

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