Oscillation for Prepared Electronic Tape and Symphony Orchestra is a multi-sectional one-movement composition with an aleatory section that has been partially serialized. The piece begins with a five-tone motif on tape which is developed by the orchestra as an introduction to Section I. The principal theme is developed by the strings and brought it to a climax. This climax is immediately interpolated by the five-tone motif slightly altered. At this point the thematic material is mutated and the orchestra goes through a harmonic texture change. The quartal harmonic treatment develops a cluster of tones that resolve into other clusters and the process is repeated to the accelerando of Section II