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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

b. 27

composition: Op. 29, Impromptu in A♭ major

 
 
..

We add the fingering written by Chopin in FEJ and FES in analogous bar 109.

category imprint: Editorial revisions

issues: Annotations in teaching copies

b. 27

composition: Op. 29, Impromptu in A♭ major

 
 
..

EE1 erroneously has g2 instead of f2 as the last quaver in the R.H. The mistake was corrected in EE2.

category imprint: Differences between sources

issues: Errors in EE

b. 27

composition: Op. 29, Impromptu in A♭ major

..

The indication  may have been overlooked in FE.

category imprint: Differences between sources

issues: Errors in FE

b. 27

composition: Op. 29, Impromptu in A♭ major

..

GE1 is lacking a cautionary natural next to the 10th quaver d in the L.H. 

category imprint: Differences between sources

issues: Errors in GE