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 II
Same as in bar 13, the change of rhythm is probably a result of a mistake or revision, this time of the engraver of FE (→EE). Same as in that case, a possibility of Chopin's proofreading cannot be, however, entirely excluded.
Compare the passage in the sources »
category imprint: Differences between sources
issues: FE revisions, Inserted rest
notation: Rhythm