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 2, Waltz in C♯ minor
In A Chopin introduced here only a four-flat key signature. He rectified his mistake in the last proofreading of FE (→EE); however, the misleading notation remained without correction in GE. Interestingly enough, AI includes the correct notation, whereas in As, in spite of the fact that the change of key before the D major section is not marked at all, the absence of flats before most of the g notes and the presence of naturals before g suggests a five-flat key signature.
Compare the passage in the sources »
category imprint: Differences between sources; Source & stylistic information
issues: Errors of A, Authentic corrections of FE, Last key signature sign
notation: Shorthand & other