1. Sonata Op. 106 in B-flat "Hammerklavier" Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-03-11 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.129
2. Sonata Op. 49, No. 1 in G minor Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-03-11 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.129
3. Sonata Op. 49, No. 2 in G major Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-03-11 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.129
4. Sonata Op. 54 in F major Collection: Concert Programs (SOM) Contributers: Beethoven, Ludwig van (composer) and Ian Hobson (piano) Performance: Performance Performance Date: 1987-03-11 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.36 p.129