1. Sonate No. 17 in d minor, Op. 31, No. 2 Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Jeffrey Irgens (pianist) Performance: Masters of Music Piano Recital Performance Date: 1977-04-05 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.337
2. Sonate No. 3 in b minor, Op. 58 Collection: Concert Programs (SOM) Contributers: Chopin, Frederic (composer) and Jeffrey Irgens (pianist) Performance: Masters of Music Piano Recital Performance Date: 1977-04-05 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.337
3. Sonate in B-flat Major, K. 333 Collection: Concert Programs (SOM) Contributers: Mozart, Wolfgang Amadeus (composer) and Jeffrey Irgens (pianist) Performance: Masters of Music Piano Recital Performance Date: 1977-04-05 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.337