A nego kaj je nego heavy metal sve to ? Po definiciji "...the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion, extended guitar solos, emphatic beats, and overall loudness. Heavy metal lyrics and performance styles are often associated with masculinity, aggression, and machismo.". U svakom podžanru imaš sve nabrojano (ili većinu). Ovo trash, speed, crossover, bla bla... su samo derivacije. Isto kak imaš u rocku; psihodelični, hard, soft, art, pop... ali je u suštinu sve to rock muzika.