Scores owned by percussionist and conductor, Jan Williams. The majority of the scores were marked by Williams for use in performance. Some scores bear inscriptions from composers to Williams.

Contains sound recordings on 390 cassettes and 22 reels of performances from the North American New Music Festival, a series of annual festivals of contemporary art music sponsored by the University at Buffalo Department of Music from 1983 to 1993. The collection contains recordings of circa 720 musical works composed by about 334 different composers, including most of the most prominent composers of the 20th century. Many works were rehearsed and prepared with their respective composers in attendance and performers at the festival were chiefly specialists in new music.

The Pamela Gearhart Papers contain a biographical summary, curriculum vitae, correspondence, newspaper clippings, and programs.

The collection contains recordings of fifty-one of the fifty-three concerts presented at the June in Buffalo festival from 1975-1978 and in 1980. Approximately 216 works were recorded as well as some spoken introductions to works by their respective composers. The collection also contains recordings of three of the five lecture-seminars presented by John Cage during June in Buffalo 1975.

The collection chiefly consists of correspondence between thirty-two composers being considered or invited to fill the position of Slee Visiting Professor in Music at the State University of New York at Buffalo. It also contains clippings pertaining to the composers.

The Sylvia Brigham-Dimiziani Collection of Annotated and Manuscript Scores contains eleven musical scores including three works by Lukas Foss that contain markings entered on the scores by Sylvia Brigham-Dimiziani in preparation for performances.

Oral history interviews with 24 interviewees compiled by the University at Buffalo Music Library related to local and university music history.

The collection contains approximately 1300 scores, half of which bear markings entered by Mikhashoff or his colleagues in preparation for performance. The collection includes manuscripts and print publications, both originals and reproductions.