Various, Ozzy Osbourne, War Babies, Dream Police, Alice Cooper, Firehouse, Danger Danger, Europe, Pink Cream 69, Pearl Jam, Mindfunk, Reptile Smile

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.