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. 22, Polonaise
The sources are lacking in the accidental before the 2nd played note of the run. It must be Chopin's mistake (one of the most frequent ones – oversight of an alteration's cancellation), since a2 would have suggested a turn towards B major (G minor), and not F minor, whose dominant we are about to hear. Due to the absence of this accidental, a2 should also be in the ending of the run.
Compare the passage in the sources »
category imprint: Interpretations within context; Editorial revisions
issues: Omissions to cancel alteration, Errors repeated in GE, Errors repeated in EE
notation: Pitch