芝加哥交响乐团
The Prometheus Ensemble is a group formed to supplement the Beethoven Project Trio. The group’s size changes according to the repertoire. Regular performers have included David Taylor (Assistant Concertmaster of the Chicago Symphony Orchestra), Li-Kuo Chang (Assistant Principal Viola of the Chicago Symphony Orchestra), Patrick Jee (Acting Principal Cello of the Lyric Opera), Paula Kosower, Larry Combs (former Principal Clarinet of the Chicago Symphony Orchestra), Aurelien Pederzoli (Vice-President of IBP), Kenneth Olsen (Assistant Principal Cello of the Chicago Symphony Orchestra), Sang Mee Lee, Wendy Warner and George Lepauw.