1. Acoustic Composition No. 1 (1972) Collection: Concert Programs (SOM) Contributers: Udow, Michael (composer) and Michael Udow (timbrack) Performance: Masters of Music Timbrack Recital Performance Date: 1977-11-16 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.940
2. Barn Burner (1977) Collection: Concert Programs (SOM) Contributers: Udow, Michael (composer), Michael Udow (timbrack), and Robert Gray (trombone) Performance: Master of Music Timbrack Recital Performance Date: 1977-11-16 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.940