ONCE Festival

The ONCE Group was a collection of musicians, visual artists, architects, and film-makers who wished to create an environment in which artists could explore and share techniques and ideas in the late 1950s and early 1960s. The group was responsible for hosting the ONCE Festival of New Music in Ann Arbor, Michigan, between 1961 and 1966. It was founded by Ann Arborites Robert Ashley, George Cacioppo, Gordon Mumma, Roger Reynolds and Donald Scavarda.