1. Fifteen Variations with Fugue in E-flat Major, Opus 35 ("Eroica") Collection: Concert Programs (SOM) Contributers: Debussy (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1978-04-17 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.27 p.332
2. Six Variations in F Major, Opus 34 Collection: Concert Programs (SOM) Contributers: Beethoven (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1978-04-17 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.27 p.332
3. Three Etudes (Book II) Collection: Concert Programs (SOM) Contributers: Debussy (composer) and William Heiles (pianist) Performance: Faculty Piano Recital Performance Date: 1978-04-17 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.27 p.332