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. 21, Concerto in F minor, Mvt III
The cautionary flat before b1 was added in the proofreading of FE (→EE) as well as in GE2. In the case of FE, one cannot exclude Chopin's intervention, although the revision of GE2 proves that such an addition could have also been performed by the reviser.
Compare the passage in the sources »
category imprint: Differences between sources
issues: GE revisions, Cautionary accidentals, FE revisions
notation: Pitch