In Double Double or Nothing, a collaboration between Madison Brookshire and Laura Steenberge, two projectors, running without any film in them, each produce a low mechanical hum. A sine tone plays out of nearby speakers, creating a chord that quietly fills the room. Brookshire (harmonium and voice) and Steenberge (viola da gamba and voice) respond to this low chord with long tones tuned to the overtones to produce subtle textures that simultaneously feel ever-changing and invariable. —MB & LS