Co-founder of LA-based Peak Oil and manager of Chicago label Kranky, Leech [aka Brian Foote] has kept a profile as understated as his music. His 2019 release, Data Horde, is a dissection and carefully-reassembled conglomerate of drum ‘n’ bass, glitch, IDM, jungle, and free jazz. What could be confused and overwhelmed is eerily spacious and exact.