Various, No Artist, Dio, No Artist, No Artist, The Michael Schenker Group, Divine Rite, Foghat, No Artist, No Artist, No Artist, No Artist, Aerosmith, Queensrÿche, Queensrÿche, Aerosmith, Run-DMC, No Artist, No Artist, AC/DC, No Artist

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.