- Felix Salzer papers /
- Series 2: Heinrich Schenker Nachlass /
- Sub-series 4: Analyses of Beethoven, Brahms, Haydn, and Mozart (Mappe 27) /
- Beethoven /
- 27/17 /
- Recto: Sketches and notes, Piano Sonata in Ab major, op. 26; "VI" in top left hand corner
No child components.