Ellsworth Milburn - Menil Antiphons (1989)
Ellsworth Milburn (1938–2007) began his career as music director for the improvisational theater company Committee. He continued in show business as a composer and performer for several years, eventually serving as pianist for Second City. He even has an actor credit on his page at IMDB. However, concurrently with his show business career he was pursuing a career as a composer of contemporary music.