The Morton Feldman Papers comprise personal and business correspondence, writings by and about Feldman, clippings, programs, and photographs.

Contains 71 photographs of musicians who participated in the June in Buffalo Festival 2000 at the University at Buffalo.

The collection contains recordings of 93 of the approximately 173 concerts presented at the Evenings for New Music concerts from 1964-1980. Approximately 464 works were recorded as well as some spoken introductions to works by their respective composers. The original recordings were made on reel-to-reel tapes. The contents were transferred to cassettes in the 1980s and then digitally reformatted in 2007 onto CDs (service and in-house masters) and DVDs (preservation masters).

The collection contains photocopies of musical scores for 127 tangos for solo piano from 127 composers. The collection also documents the process by which Mikhashoff commissioned and performed the tangos. It includes correspondence, Mikhashoff's research into the history of the tango, and performance materials (i.e. programs and reviews). Composers commissioned for this project include Milton Babbitt, Lukas Foss, Otto Luening, Conlon Nancarrow, Luis de Pablo,and Nils Vigeland.

The Leo Smit Papers comprise works lists compiled by Leo Smit, articles written by Smit, personal correspondence (chiefly photocopies of letters from Aaron Copland), programs, reviews, and lecture materials.

Music librarian Carol June Bradley conducted interviews with 37 music Librarians from various institutions in the United States to research the history and practices of music librarianship.

Contains 132 digital images of musicians who participated in the June in Buffalo Festival 2012 at the University at Buffalo, including guest composers Fred Lerdahl, Steven Stucky, and Robert Beaser.

The collection contains personal documents, correspondence, concert programs, and clippings that document the life of singer and librarian Joseph Chouinard.

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.

The collection contains scores of five compositions by John Myhill in varied states of completion and a folder of sketches and musical analyses. The collection also contains a folder of prose writings and a single piece of correspondence to Myhill.