1. Sonata Op. 2, No. 1 in F minor Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-02-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.57
2. Sonata Op. 31, No. 3 in E flat major Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-02-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.57
3. Sonata Op. 53 in C major "Waldstein" Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-02-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.57
4. Sonata Op. 78 in F-sharp major Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-02-20 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.57