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ONCE Group collection

Identifier: ONCE

  • Staff Only
  • No requestable containers

Scope and Contents

Contains documents, artifacts, interview tapes, and other materials relating to the ONCE Group and ONCE festivals. It contains the dissertation research materials of Sandra Braun, much of which is primary material given to her by members of the ONCE Group whom she had interviewed.


  • 1954 - 2010
  • Other: Majority of material found within 1961 - 1969
  • Other: Date acquired: 01/05/1980



27.00 Boxes

Language of Materials



The ONCE Group of American composers and avant-garde artists evolved in the late 1950s in Ann Arbor, Michigan.  This collection contains documents, artifacts, interview tapes, and other materials relating to the ONCE Group and ONCE festivals.

Arrangement Note

Arranged in 10 series: 1. ONCE programs and promotional materials, 1960-2010. 2. Clippings, 1959-1968. 3. Photographs, 1960-2010. 4. Sandra Braun papers, 1954-1978. 5. Robert Ashley papers, 1966-1984. 6. Gordon Mumma papers, 1954-1966. 7. Sound recordings, 1958-2010. 8. Journals, 1962-1982. 9. Ephemera, 1960-1967. 10. Posters, 1961-1983.

Method of Acquisition

Sandra Braun's papers were received in May 1980 from her father, Isaac M. Abeles; the Milton Cohen slide projections were received in September 1980 from Gerome Kamrowski; Robert Ashley's papers came in 1984.  Additional contributions from George Cacioppo (1980), WUOM (1980), Robert Sheff (1980), Jerome Kamrowski (1980), Richard James (1982), Ralf Dietrich (1998), and Michael Daugherty (2010).

Existence and Location of Originals

Archival compact disc copies of the WUOM audiotape reels are available in the Music Listening Center (ACD0001--ACD0033).

Related Publications

More information is contained in Richard James’ article, “ONCE: microcosm of the 1960s musical and multimedia avant garde,” American Music 5, 4 (1987): 539-590.

Separated Materials

Some duplicate materials were discarded.

Processing Information

Processed by Morris Levy in 2015.

Guide to the ONCE Group collection
Morris S. Levy
Description rules
Describing Archives: A Content Standard
Language of description
Script of description
Language of description note

Library Details

Part of the Music Library Repository

Deering Library, Level 3
1970 Campus Drive
Evanston IL 60208-2300 US