Various, Krimson Kross, Strychnine, Strikeforce, Vikron, Final Dawn, Liquid Earth, Intruder, Sanction, Red Ruin, Strikeforce, Wicked Sin, Vengeance

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.