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b. 23

composition: Op. 29, Impromptu in A♭ major

..

We add a cautionary flat next to d3. The sign was already added in GE.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 23

composition: Op. 29, Impromptu in A♭ major

..

In A the 7th quaver in the L.H. was initially written under the pentagram – a deletion of the note is visible. It could have been a c1 written without changing the clef to the bass one; however, it cannot be excluded that it was a C.

category imprint: Corrections & alterations

issues: Deletions in A , Accompaniment changes

b. 24

composition: Op. 29, Impromptu in A♭ major

..

We add a cautionary flat before e3. The sign was already added in GE2 (→GE3GE4), where the flat next to e on the 10th quaver of the L.H. was also added.

category imprint: Differences between sources; Editorial revisions

b. 25

composition: Op. 29, Impromptu in A♭ major

 
 
..

EE1 has d as the 1st note. It is certainly an error of "thirds", corrected in EE2.

category imprint: Differences between sources

issues: Errors in EE

b. 26

composition: Op. 29, Impromptu in A♭ major

..

Originally, Chopin wrote the note a as the 7th quaver in A. 

category imprint: Corrections & alterations

issues: Deletions in A