Various, Jeff Wayne, Justin Hayward, Herbie Hancock, Heatwave, Ram Jam, The Dooleys, Billy Ocean, Toto, Santana, Phoebe Snow, Dr. Hook & The Medicine Show, The Beach Boys, Manhattans, Barry White, Mary Mason, David Essex, Sutherland Brothers

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.