Bless the black metal band that's deeply devoted to excavating niche subjects when most listeners have barely heard of the topic under discussion in the first place. That's the story with 22-year-old Dallas trio Absu, which specializes in "mythological occult metal." In a 2009 Pitchfork interview, squad leader/drummer/vocalist Proscriptor McGovern discussed taking lyrical cues from "paranormal ideologies, Sumerian mythology, Mesopotamian cosmology, Goetia, numerology, and antiquated necromancy"— all of which follow past records drawing from Celtic lore. Is this overly dense material better used in a thesis paper than by a blistering band whose vocals are unintelligible without a cheat sheet (and even then, difficult to discern)? Yes, but points to Absu for embracing its high-minded interests and trying to spread some esoteric knowledge.