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b. 27

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

F1-F in GC (→GE) & FE

F1-F in EE

..

The version of EE is vitiated by an uncertainty concerning its authenticity – it can be a mistake or revision, which cannot be stated without the manuscript base text to this edition or other additional pieces of source information. Therefore, in the main text we give the compatible version of the remaining sources. As far as the music is concerned, the version of EE seems to be less convenient, as it omits F in the progression of bass, without any specific reason, which is the base of the initial and final chord of the dominant in the B minor/B major key: (F)-E-D-E-F(!)-A.

category imprint: Differences between sources

issues: EE revisions

b. 28

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

..

In GC, FE and EE the only accidental before the last chord in the R.H. is the cautionary  before e1. According to us, the sign is not superfluous here, contrary to the  returning f1, which was added only in GE.

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , GE revisions , Cautionary accidentals

b. 32

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

Octave in GC (→GE), FE & EE3

b1 alone in EE1 (→EE2)

..

The authenticity of the version of EE cannot be excluded, yet, according to us, a mistake is more likely here, e.g., due to the similarity of the 2nd half of the bar to bar 34. Chopin resigned from striking in similar places only when the note was being performed by the L.H. (bars 34, 42 and analog.) or when the 1st finger of the R.H. remained on the d1 crotchet ending the phrase of the middle voice of the R.H. (bars 60 and 80). The preserved in EE 4th finger over this quaver also provides an argument for a mistake – a single b1 note is easier to be performed with the 2nd finger. 

category imprint: Differences between sources

issues: Errors in EE

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. 38

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

..

We add a cautionary  before e. The sign was already added in GE2 (→GE3).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions