Op. 2, Variations in B♭ major
Op. 10, 12 Etudes
Op. 11, Concerto in E minor
Op. 21, Concerto in F minor
Op. 22, Polonaise in E♭ major
Op. 24, 4 Mazurkas
Op. 25, 12 Etudes
Op. 26, 2 Polonaises
Op. 27, 2 Nocturnes
Op. 28, 24 Preludes
Op. 30, 4 Mazurkas
Op. 35, Sonata in B♭ minor
Op. 50, 3 Mazurkas
Op. 63, 3 Mazurkas
Op. 64, 3 Waltzes
Op. 27 No 2, Nocturne in D♭ major
The deletion in A allows one to see that originally Chopin wrote the sixth e2-c sharp3 as the 3rd quaver of the bar. The change was probably made after the whole bar had been written in - the proof of that is the 
raising c2 to c sharp2 in the second half of the bar.
Compare the passage in the sources »
category imprint: Corrections & alterations
issues: Corrections in A, Errors resulting from corrections
notation: Pitch
