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. 31, Scherzo in B♭ minor
In A one can see in these bars 4 minor crossings-out. All concern cautionary accidentals that Chopin, after a moment of reflection, considered superfluous. The accidentals in the L.H. part – 
before c
in b. 490 and 
before B in b. 491 – warn us not to play notes peculiar to the G minor key, which is going to be confirmed only just in the next bar.
Compare the passage in the sources »
category imprint: Corrections & alterations; Source & stylistic information
issues: Cautionary accidentals, Deletions in A
notation: Pitch
