The papers largely consist of notes and materials regarding his compositions along with some personal notes and fragments. His notes on the performance of his compositions may be on interest to performers and scholars. Some fliers and programs from his performances survive. The correspondence dates mainly from the years just prior to his death.

Not all his scores are represented in the collection, which is particularly strong on early pieces (from the 1960s) although his major later works are present. Many scores are self-published ozalids, but the masters also survive. There are some manuscript sketches for later works. The published scores are present only in their published form. Absent from this collection is his 1967 piano piece “Sound-Gone” which is now out of print. Also included are a few concert and rehearsal recordings.