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b. 48

composition: Op. 29, Impromptu in A♭ major

..

In the chord there is no natural next to b in FE. The error was corrected in all pupils' copies.

category imprint: Differences between sources

issues: Annotations in teaching copies , Errors in FE

b. 48

composition: Op. 29, Impromptu in A♭ major

 
 
 
 
 
 
..

Lack of natural next to d1 is an obvious Chopin's error. The version with a (without the flat raising to a) is musically possible, yet Chopin's annotation in FES indicates rather a double error of the composer in A and FE

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , GE revisions , Omission of current key accidentals , Errors of A , Annotations in FES

b. 48

composition: Op. 29, Impromptu in A♭ major

..

A, FE and EE are lacking the natural raising a2 into a2. The sign was added by Chopin in FEJ, it was also included in GE.

category imprint: Differences between sources

issues: Annotations in teaching copies , Accidentals in different octaves

b. 48

composition: Op. 29, Impromptu in A♭ major

..

Before the last small note in A, FE and EE there is no natural raising b1 into b1. This obvious oversight was corrected in GE.

category imprint: Differences between sources

issues: GE revisions , Omission of current key accidentals

b. 48

composition: Op. 29, Impromptu in A♭ major

..

In A (→GE) and FE there is a natural before d2. We delete the sign which is unnecessary in this context. In EE there is no natural.

category imprint: Differences between sources; Editorial revisions