Learn about IOCSF.

Recipients of a National Endowment for the Arts grant in 2024, the International Orange Chorale of San Francisco (IOCSF) is an auditioned, all-volunteer chamber choir devoted primarily to the performance of 20th and 21st century music. Led by Interim Artistic Director Chris Filice, and named after the color of the Golden Gate Bridge, IOCSF aims to consistently perform new and newly commissioned works by promising, underperformed, and underrepresented composers.

IOCSF has performed world premieres of 25 choral works and has also presented regional premieres of five works, including Milton Babbitt’s “Music for the Mass,” Nico Muhly’s “Lorde Heare My Prayer,” Jake Heggie’s “Faith Disquiet,” and Pulitzer Prize- winner Caroline Shaw’s “Fly Away I.” IOCSF has collaborated with Frederica von Stade, Zheng Cao, Jake Heggie, and Nicolle Foland; appeared as part of the Noontime Concert Series at Old St. Mary’s Church and the Noe Valley Chamber Music Series in San Francisco; performed in collaboration with the Yale Glee Club at Grace Cathedral; participated in the Haiti Earthquake Relief Concert at the Cathedral of Christ the Light in Oakland; and served as a Featured Ensemble at the Chorus America National Conference by giving both performances and master classes. Since its inception, the group has been committed to performing free concerts featuring challenging and imaginative a cappella choral programming.