Endless Forms begins with “This is Your Brain on Music,” in which neuroscientist Daniel Levitin expounds on music’s mysterious effect on humans while enigmatic ambiance suspensefully broods behind him. It’s an unconventional start to a techno album, and it tips you to Butane’s skewed take on a genre plagued by predictability. Berlin-via-St. Louis producer Andrew Rasse goes from there to create chugging, midtempo tracks suffused in eerie atmospheres and accentuated by inventive tones and peculiar percussion. Compositions like “Nite Vision,” “Mutation,” and “Adaptation” exude a dark, subtle sexiness, a lascivious locomotion, lending Endless Forms a subterranean vibe that’s as chilling as it is seductive. Your brain will wriggle.