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b. 38-39

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

g1 in GC (→GE) & EE1

g1 in FE & EE2 (→EE3)

..

The version of FE – the E minor chord twice – could have been introduced in the proofreading of FE and was accepted by Chopin during the lessons, which is proved by Chopin entries in FES and FED, performed in the direct neighbourhood of this place. We adopt it to the main text as the undoubtedly authentic and possibly the latest version. Its appearance in EE2 (→EE3) indicates the use of an FE copy while editing this impression (cf. the Etude in G minor, No. 6, bar 4). In this situation, the version of GC (→GE) and EE1 with the E major chord, appearing twice, seems to be either earlier or even erroneous (this kind of oversight of accidentals defining a minor key may be suspected in the Etude in F minor, Dbop. 36 No. 1, bars 41-45).

It is one of these places in which the later editorial and performance practice consolidated the non-authentic compilation of source editions with g1 in bar 38 and g1 in bar 39. 

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 39

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

..

In GC, FE and EE1 (→EE2) there is no  lowering c1 to c1, whereas in FE there is also no sign before in the L.H. The necessary signs were added in FES, GE and EE3.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , GE revisions , Omission of current key accidentals , Annotations in FES

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. 43-44

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

..

In GC one can see Chopin correction from the following original version: .

category imprint: Corrections & alterations; Source & stylistic information

issues: Authentic corrections in GC

b. 44

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

 in GC (→GE) & EE

 in FE

..

 in GC (→GE) and EE is the original version, changed by Chopin in the proofreading of FE, in which the indication was deleted, while  hairpins were added.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE