No greater an aura of tension awaits you this week than when Los Angeles doom metal band Qaalm — vocalist Pete Majors, guitarists Henry Derek Elis and Brock Elmore, sampling keyboardist Christopher Jon, bassist David Huet, drummer Etay Levy — unveil an experience that’s as much about the forging of something heavy as it is about the genre of metal itself. Their Reflections Doubt demo EP is out now. Think of it as the thinking devil’s heavy metal. So what actually goes through your head when you know that you’re doomed? Qaalm asks that most final of all possible questions and crystallizes it into something beautiful. Beautiful, beautiful doom. Also tonight: the auric electronics of Andorkappen, the blackened ambience of The Sun and the Mirror, and the brutal cello of Isaac Takeuchi.

Qaalm plays with The Sun and the Mirror, Isaac Takeuchi and Andorkappen at 8 p.m. on Monday, September 9 at the Lexington.