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. 10 No 2, Etude in A minor
The cautionary accidentals before c1 in the L.H. were added in the L.H. in one of the last proofreadings of FE (→GE). They are also included in EE, apart from the 
missed in bar 5 in EE2 (the engraver of EE also omitted in bar 6, thus there are no accidentals on the entire stave of the 3rd great stave). This undoubtedly necessary addition probably comes from Chopin, although the signs are not to be found in any of the manuscripts.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Cautionary accidentals, EE inaccuracies, Authentic corrections of FE
notation: Pitch
