rock, heavy metal, progressive metal, thrash metal, progressive, heavy, thrash, speed metal, avant-garde, space, dark, 1987, technical, futuristic, apocalyptic, complex, angry, energetic, surreal, technical thrash metal, male vocalist, science fiction, quirky, aggressive, manic, ominous, pop/rock, speed/thrash metal, chaotic, suspenseful, dissonant, rebellious, pessimistic, uncommon time signatures