Various, No Artist, Tesla, No Artist, No Artist, Dio, Tesla, Poison, Kiss, No Artist, No Artist, No Artist, Whitesnake, Aerosmith, Aerosmith, No Artist, No Artist, No Artist, Boston, No Artist, No Artist, 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.