Various, Ripper Owens, Ron Thal, David Ellefson, Cherie Currie, Tracii Guns, Stephen Pearcy, Vinnie Moore, Chris Poland, Graham Bonnet, Mick Box, Carmine Appice, Ty Tabor, Paul Shortino, Phil Soussan, BulletBoys, George Lynch, Kim McAuliffe, Cliff Evans, Paul Di'Anno, Enuff Z'nuff, L.A. Guns, Thor

Bay Area Thrash Metal

Riffs cut like machine tools, tempos past 200bpm, and a garage circuit that rewrote American metal.

West Midlands Metal

Downtuned riffs from a factory city — Sabbath to grindcore, four decades of Birmingham making music heavier.