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. 10 No 3, Etude in E major
2-a3 in 
The undoubtedly earlier version of AI constitutes the ending of the deleted four-bar section, which was originally written between bars 53 and 54:
It cannot be excluded that after having deleted this four-bar section, Chopin forgot to change the beginning of bar 54 in the part of the R.H.
category imprint: Differences between sources; Corrections & alterations
issues: Changed phrase length
notation: Pitch
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