IN LIVE PERFORMANCE, Maria Chávez is a bricoleur of intricate, cerebral, capricious sonic landscapes constructed through improvised sampling. The Peruvian-born, New York–based sound artist uses one or more turntables (her typical setup these days includes four) and an evolving collection of scratched and broken records over which her needles glide, skitter, and pounce. Mesmerizing loops extracted from test tones, sound effects, spoken-word albums, and myriad other sources never build into hooks; rather, they stutter or disappear into worlds of static, a celebration of the aesthetics of chance