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Verbal indications

b. 35

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

 in GC (→GE) & EE

No marking in FE

..

The missing  in FE does not seem to be a result of Chopin's proofreading – it is rather an oversight of the engraver, possibly inattention at the time of writing or completing the handwritten base text to FE.

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 42-43

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

One ten. in GC (→GE) & EE3

Two ten. in FE

No indications in EE2 (→EE3)

..

The ten. indication in bar 43 – present both in FE and GC (→GE) – was most probably already in the manuscripts. In turn, the one in bar 42 was most probably added by Chopin in the proofreading of FE, which is indicated by the bigger font in comparison with the remaining ones (in bars 18-19 and 43). The appearance of one ten. in EE3 proves the access of the reviser to GE1.

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , Authentic corrections of FE

b. 45

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

 in GC (literal reading→GE1)

 in GC (probable interpretation) & GE2 (→GE3)

 & accent in FE

 & accent in EE

..

It is hard to state how the difference in the placement of  occurred and, which is more important, which note it is supposed to concern – the C grace note or the eminim. The compatibility of GC and EE ( is almost certainly a result of a misinterpretation of ) allows to assume that in the manuscripts the sign was under the stave, which would rather indicate the mnim. The version with minim is also supported by deletion of the concerning it accent in GC, considered by Chopin as superfluous, perhaps due to . We give this version in the main text, present in the base source and including the Chopin correction.
On the other hand, the indications of FE –  under C and accent over e1 – have a musical sense, particularly in the context of corrections of the dynamics in the previous bar. Therefore, we recommend this version as alternative with respect to the main text. At the same time, we interpret the accent as long, taking into account the sign that the copyist rewrote in this place from GC, as well as the one Chopin added in FES in bar 1.

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in FE , Authentic corrections in GC

b. 60-61

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

No indications in GC (→GE) & FE

ten. in EE

Our variant suggestion

..

The ten. indications, appearing only in EE, are most probably authentic – cf. analogous bars 18-19, in which the indications appear only in FE and bars 42-43, in which they are in FE and GC (→GE). In the main text, we suggest them in the variant form (in brackets) due to their possible relation with the slurring, which appears in two different versions. 

category imprint: Differences between sources