If Stephen King novels had soundtracks they might sound like this ambient drone group. Zac Bentz is the founding member and primary sound generator/mastermind. This year Bryon Gaynor and his bass are back. Eric Anderson will also be joining the group on bass and some electronics. Dirty Knobs sounds like a mash-up of robots reciting binary numbers, chanting Tibetan monks and fuzzy assorted sounds. Among the roughly 30 Dirty Knobs albums released since 1999, Obliteration Ballads: Lovesongs by Dying Supermachines is the most recent … unless, of course, a new one came out while this sentence was in production.

6:15pm Saturday 5/7 at Amazing Grace