Active listening with variable-speed and filtering tools is itself a compositional practice

Oswald describes his personal listening system — a mixer instead of a receiver, an infinitely variable-speed turntable, filters, and reverse capability — as a compositional environment. Speeding up music reveals macrostructure; slowing it exposes articulation and grain. Juxtaposing portions simultaneously enables comparison and counterpoint. This reframes the listener not as passive consumer but as active co-composer, transforming recorded material without generating new recordings. The approach anticipates DJ culture, laptop performance, and live remix practice as legitimate musical activity, not mere playback.

Examples

Speeding up a 20-minute symphonic movement to perceive its large-scale arch in two minutes; slowing a rapid piano figure to 1/4 speed to hear each note’s decay; playing two recordings simultaneously to hear harmonic or rhythmic relationships.

Assessment

Design a ‘listening session’ that uses speed, filtering, and juxtaposition to reveal something about a piece of music that standard playback at normal speed would not. Describe what you expect to discover and why.