Mathbonus’s *Black Dog*—released on the prolific Northwest Industries—is a fascinating case study in contemporary experimental electronic music. The album navigates between glitchy IDM and ambient textures, showcasing Mathbonus’s meticulous sound design and knack for unexpected melodic turns. Fans of early Autechre and the more cerebral corners of Tycho will find much to appreciate in this intensely detailed and often unsettling work.