With over a hundred titles to his name—not to mention dozens of collaborations—Steve Roach's catalogue is a formidable one. This playlist explores the deeper zones of his soundworld, such as “Altus”, which sounds like a round-trip voyage into the void. “Western Spaces” shimmers like a mirage, and the gentle pulsing of “Escher's Dream Is Dreaming” finds Roach dusting off his modular synth.