Issues : Omission of current key accidentals

b. 35

composition: Op. 25 No 10, Etude in B minor

..

In GC there is no  raising e1 to e1. The patent inaccuracy was corrected in GE.

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Omission of current key accidentals , Errors of GC

b. 36

composition: Op. 27 No 2, Nocturne in D♭ major

..

A has no   raising a flat1 to a1. The mistake was already corrected in GE (FE>EE). We remove the unnecessary  before c sharp2.

category imprint: Differences between sources

issues: GE revisions , Omission of current key accidentals , Authentic corrections of GE

b. 36

composition: Op. 27 No 2, Nocturne in D♭ major

..

In A (→GE1) there are no naturals raising e flat to e and E flat to E. The accidentals were supplemented in the proofing of FE (→EE), yet the first one was mistakenly placed before the 6th note. GE2 has the correct text.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Omission of current key accidentals , Authentic corrections of FE

b. 36

composition: Op. 45, Prelude in C♯ minor

Accidentals in FE1

GE and FE2

..

Lack of flats in front of two last quavers is a patent inaccuracy of FE1, corrected in FE2. GE also has a correct text. A suitable addition was also introduced to EE, in which, however, the pitch of the fourth quaver was changed from c2 to c2, as well as of the sixth one - from fto f2 (f2?).

category imprint: Differences between sources

issues: EE revisions , Inaccuracies in FE , Omission of current key accidentals , FE revisions

b. 36-37

composition: Op. 26 No 1, Polonaise in C♯ minor

..

In bar 36 in A there are no accidentals, which is certainly Chopin's mistake – cf. analogous bar 11. The necessary accidentals were added in the proofreading of FE (→GE,EE), together with the cautionary sharps in bar 37. 

category imprint: Interpretations within context; Differences between sources

issues: Cautionary accidentals , Omission of current key accidentals , Errors of A , Authentic corrections of FE