- Felix Salzer papers /
- Series 2: Heinrich Schenker Nachlass /
- Sub-series 1: Study of thoroughbass, analyses of J.S. Bach, miscellaneous notes (Mappe 6) /
- Notes on J.S. Bach's Generalbassbüchlein (and other notes on Generalbass) /
- Figured bass and typewritten copies of Schenker's thoroughbass texts /
- 6/353: Typescript of Schenker's "Kommentar zu Ph. E. Bachs Versuch über die wahre Art das Clavier zu spielen", created by Ernst Oster [n.d.]