Thrash Metal Riff in E

Thrash metal combines the speed of punk with the heaviness of metal. Rapid 16th-note palm-muted chugging on the open low E string alternates with power chord hits. The progression Em5–G5–A5–C5–B5 creates a dark, aggressive statement at high speed. Think Metallica, Slayer, Megadeth — all built on this vocabulary.