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. 44, Polonaise in F♯ minor
GE has no cautionary 
to e1. The accidental in FE was probably added by Chopin at the stage of proofreading of FE1. It is indicated by the lack of planned space for a in this bar and by the presence of naturals in analogous b. 45 and 71, but not 278 and 304.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Cautionary accidentals, Authentic corrections of FE
notation: Pitch
