The collection contains Music and business papers: programs, newspaper reviews, announcements, scrapbooks, agendas of meetings, reports, membership lists, financial statements, correspondence, etc.

Founded in 1947 as an independent organization called Composers' Forum by Jane Hohfeld and others, centered in Northern California, the group following their third season (1949/50) became affiliated with the International Society for Contemporary Music. It is not associated with the Composers' Forum (U.S.), which is based in New York City.

All requests for permission to publish or quote from manuscripts must be submitted in writing to the Head of the Music Library.

Collection is open for research.