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b. 27-28

composition: Op. 25 No 7, Etude in C♯ minor

Longer slur in GC, EE & GE2 (→GE3)

Shorter slur in FE & GE1

..

The moment of ending the slur in GC is not entirely clear – it can be interpreted as including only bar 27, as it was done in GE1, or as reaching E1 in bar 28, as it is in GE2 (→GE3). According to us, it is the second interpretation that is correct. We give this version, present also in EE, in the main text. 

category imprint: Graphic ambiguousness; Differences between sources

issues: GE revisions

b. 27

composition: Op. 25 No 7, Etude in C♯ minor

Fingering digit written in FES

No teaching fingering

Fingering in EE2 (→EE3)

..

The fingering added by the reviser of EE2 (→EE3) is undoubtedly the only numeral written by Chopin in this bar in FES.

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FES

b. 27

composition: Op. 25 No 7, Etude in C♯ minor

..

In FE there is no  lowering g2 to g2 on the 1st chord of the bar, which is a patent error. The sign is in all remaining sources. All sources, together with FE, include a  at this pitch before the chord on the 2nd beat of the bar. In the main text, we omit this unnecessary sign in this context.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE

b. 28

composition: Op. 25 No 7, Etude in C♯ minor

One pedal in GC (→GE) & EE3

Two pedals in FE

 in EE1 (→EE2)

..

Chopin may have added the pedalling of this bar in all Stichvorlage manuscripts (certainly in GC, in which Chopin's hand is easily recognisable). However, he did not coordinate his entries – hence the differences between the sources. In the main text we give the most accurate indications of FE.

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , EE inaccuracies , Authentic corrections in GC

b. 28

composition: Op. 25 No 7, Etude in C♯ minor

No fingering in GC (→GE), FE & EE1

Fingering in EE2 (→EE3)

category imprint: Differences between sources

issues: EE revisions