1. Davidsbundlertanze, Op. 6 Collection: Concert Programs (SOM) Contributers: Schumann (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1974-01-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.23 p.5
2. Ile de Feu 1 Collection: Concert Programs (SOM) Contributers: Messiaen, Olivier (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1974-01-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.23 p.5
3. Ile de Feu 2 Collection: Concert Programs (SOM) Contributers: Messiaen, Olivier (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1974-01-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.23 p.5