I BELIEVE THAT THE USE OF NOISE
Wherever we are, what we hear is mostly noise. When we ignore it, it disturbs us. When we listen to it, We find it fascinating. The sound of a Truck fifty miles an hour. Static between the stations. Rain. We want to capture and control these sounds, to use them not as "sound effects" recorded on film... Given four film phonographs, we can compose ad perform a quartet for explosive motor, wind, heartbeat, and landslide.
-John Cage, from "The Future of Music: Credo"