“Free spectral echo-drone, with ululations” is the name of Body/Head’s no-leashes-on-floors game. Together, guitarist Bill Nace (Vampire Belt, various one-offs) and guitarist/singer Kim Gordon (Sonic Youth) co-sign a meandering atonality that’s more exciting than anything either musician has pursued in the last several years. In addition to releases on Ultra Ezcema, Open Mouth, and Ecstatic Peace!, riveting live footage exists on YouTube, but we’re waiting with baited breath for a proper debut LP.

Thu., June 13, 8 p.m., 2013