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
In CLI there are no naturals returning a1 and d2. The accidentals were also originally absent in FEcor, in which Chopin added both these two naturals and a third one returning f2 on the last semiquaver in the lower voice. Eventually, both FE (→GE,EE) and Ap have the correct notation.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Omissions to cancel alteration, Authentic corrections of FE, Errors of CLI
notation: Pitch
