- Year of composition: 1991, 93
- Duration: 15:17
- Instrumentation: bass trombone and fixed medium
In Wervelwind — Flemish for “whirlwind” — the trombonist performs while continuously rotating, the shifting direction and reflection generating a powerful effect. This excerpt is from a recording in preparation for a CD of five works for solo wind instrument and electronics [QUM, release: March, 1993]. The rotation was captured by a single microphone and re-stereoized using the Focal Point 3-D sound process.