INTERACTIVE MOTION is composed for Brass Quintet and Tape in one movement. The composition is approximately fourteen minutes in duration. A primary feature of this piece is the live interaction between the acoustic brass instruments and the electronically generated accompaniment. Some of the electronic sounds were created using a program written in the Csound computer language, sampled sounds and the Kurzweil K2000 synthesizer were processed with GRM Tools using Pro Tools software. The samples of the inside strings of a piano, bells, and muted brass instruments were either recorded with a portable DAT recorder or extracted from a CD of samples.