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. 23, Ballade in G minor
The deletions visible in A reveal that Chopin changed the bottom notes in the 1st crotchet in b. 170 and in the quavers ending b. 170-171. It is possible to read the deleted versions, which allows us to reproduce (with high probability) the earlier version of the R.H. part in b. 170-172: 
. The last stage of shaping this fragment was the change introduced into b. 171 while proofreading FE2.
The second L.H. figure in b. 171 was also being changed.
Compare the passage in the sources »
category imprint: Corrections & alterations; Source & stylistic information
issues: Corrections in A, Deletions in A
notation: Pitch