Issues : Omissions to cancel alteration

b. 25

composition: Op. 25 No 11, Etude in A minor

..

In GC and FE there is no  returning g1. This patent error was corrected in GE. EE also includes the correct text.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Omissions to cancel alteration , GE revisions , Errors of GC

b. 39

composition: Op. 25 No 11, Etude in A minor

..

There is no accidental before the penultimate semiquaver in GC (→GE1), FE and EE. The missing  returning d3 is undoubtedly an oversight of Chopin, corrected in GE2 (→GE3).

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Errors in EE , Omissions to cancel alteration , GE revisions , Errors of GC

b. 48

composition: Op. 25 No 11, Etude in A minor

..

The natural returning e2 is present only in GE and EE3. There is no doubt that we are dealing with Chopin's oversight.

category imprint: Differences between sources

issues: EE revisions , Omissions to cancel alteration , GE revisions

b. 50

composition: Op. 25 No 11, Etude in A minor

..

In GC, FE and EE1 (→EE2) there is no  returning a2. This patent inaccuracy was corrected in GE and EE3.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , Omissions to cancel alteration , GE revisions , Errors of GC