1. Hornpipe Collection: Concert Programs (SOM) Contributers: Mumma, Gordon (composer) and Gordon Mumma, French horn (with "cybersonic console") Performance: Performance Performance Date: 1969-11-06 Location: Music and Performing Arts Library, University of Illinois Concert Program: vol. 18, p. 354
2. Untitled Collection: Concert Programs (SOM) Contributers: Madden, Charles (composer) and Contemporary Chamber Players, Edwin London (conductor) Performance: Performance Performance Date: 1969-11-06 Location: Music and Performing Arts Library, University of Illinois Concert Program: vol. 18, p. 354