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. 4), Sonata in C minor
Op. 23, Ballade in G minor
In FE (→GE) there is a (cautionary?) 
to e
3 in the 4th quaver. This unnecessary revision (the accidental is absent in A!) most probably resulted from a misunderstanding or a mistake when correcting another error – in FE one can see here traces of removal of g3 (printed without a , necessary at this pitch). Upon seeing the octave with a only to the bottom note, the proofreader – perhaps even Chopin – could have instinctively added the other , particularly if he were just adding flats to the L.H. part. Having realised that it is a Terzverschreibung mistake, he marked a change to the pitch of the note, which the engraver implemented by moving the notehead along with the . EE did not include the superfluous accidental.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources; Corrections & alterations; Source & stylistic information
issues: EE revisions, Terzverschreibung error, Authentic corrections of FE, FE revisions
notation: Pitch
