| 
            9. August 1931
          — (Nachtrag!): 1 (1110–1210h) [illeg]Oppel: Fuge Fmoll durchgearbeitet, nach meinen neuangefertigten Vorlagen; darüber im Stundenbuch. — © Transcription Marko Deisinger. | 
            9. August 1931 
          — (supplementary note!): 1 from 11:10 to 12:10, [illeg]Oppel: the Fugue in F minor gone over in accordance with my recently completed model; notes on this in the lessonbook.— © Translation William Drabkin. | 
| 
            9. August 1931
          — (Nachtrag!): 1 (1110–1210h) [illeg]Oppel: Fuge Fmoll durchgearbeitet, nach meinen neuangefertigten Vorlagen; darüber im Stundenbuch. — © Transcription Marko Deisinger. | 
| 
            9. August 1931 
          — (supplementary note!): 1 from 11:10 to 12:10, [illeg]Oppel: the Fugue in F minor gone over in accordance with my recently completed model; notes on this in the lessonbook.— © Translation William Drabkin. | 
| Footnotes1 This supplementary note is on page 3646. |