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. 64 No 1, Waltz in D♭ major
A has a 
before the last quaver. Chopin deleted it in the proofreading of FE (→GE,EE). Since a
1 was also in all previous autographs, the temporary presence of a1 indicates Chopin's hesitation (unless it is a mistake).
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Chopin's hesitations, Authentic corrections of FE
notation: Pitch
