Battles + Once and Future Band

New York trio Battles brought math rock to the dance floor with 2011's Gloss Drop, a relentless barrage of irregular tempos and cascading guitar lines that likely provoked some very fancy footwork. Expect to hear tracks from both their ace albums on Warp, Mirrored and Gloss Drop, and new songs from recent album La Di Da Di. Oakland's psych-folk group Once and Future Band opens the show.