Music is hardly an exact science–sometimes things go wrong. Say, for instance, that you’re trying to start a hippie blues band, but then you do some fucked-up amount of acid and all of a sudden you’re in Black Sabbath. Or maybe you and your friends start out trying to play Crypt-style garage stomp, but you end up getting possessed by the spirit of Lemmy-era Hawkwind and your band turns into a monster of freaked-out rock mayhem. That’s my best guess at the Nudity origin story, anyway. A couple members used to be in retro-stylee outfits–one in Dub Narcotic Sound System, who combined indie rock with reggae and soul, and one in Tight Bro’s From Way Back When, who were doing the irony-soaked mustache-rock thing when you were still into Sebadoh–so I can imagine that resurrecting a very specific garage-band sound would seem like a good idea to them. I’m not sure how the Hawkwind stuff got in there–possibly through the use of some sort of enchanted bong–but however it happened, the results are mind-blowing. These guys seem to be able to write only songs three and a half minutes long or songs more than ten minutes long. The short ones bang and pop, and the long ones extend a caveman beat into a howling, noise-filled, psychedelic landscape–the latest demonstration of how wild and bafflingly powerful three-chord rock can get. The Paper Bullets and Wolfden open. Tue 6/13, 10 PM, Beat Kitchen, 2100 W. Belmont, 773-281-4444 or 866-468-3401, $6 in advance, $8 at the door, 18+.