Let There Be Math Rock: Battles at the TLA

New York math-rock band Battles have subtracted a member from their lineup, and the threesome that used to be a foursome has opened up its often dense, experimental sound into friskier, playful territory on their second full-length album, Gloss Drop. For a sense of the frivolity that could ensue at the Theater of Living Arts tonight, watch a man try his best to fall down an up escalator on the single, "My Machines." Yes, the appropriate-for-Halloween ghoulish guest singer is Gary Numan.

Previously: Justin, Jimmy and The Roots' History of Hip-Hop, Part 3 Follow In The Mix on Twitter here.