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b. 4

composition: Op. 25 No 6, Etude in G♯ minor

..

In front of a1, the bottom note of the 4th third, all sources include . The sign is totally unjustified in this place (we omit it in the main text), however, it reveals Chopin's doubt, as far as the notation of the a/a note in the Gkey is concerned (cf. the note to bar 7).

category imprint: Editorial revisions; Source & stylistic information

issues: Cautionary accidentals , Last key signature sign

b. 4-5

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

..

In GE1, the first time, the slur begins erroneously already from the quaver rest in bar 4. The defect was corrected in GE2. In turn, in GE3 (→GE4GE5), also the first time, its beginning was arbitrarily moved, placing it over the 1st note in bar 5.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 4

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

Double-dotted rhythm in GC (→GE) & EE

Single-dotted rhythm in FE

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One cannot see traces of performing changes in the rhythm of the top voice in the preserved sources. Moreover, it does not seem that one of the versions could have been erroneous; it is particularly excluded in the case of the rhythm of GC (→GE) and EE, confirmed by the compatible version of all sources in analogous bar 48. Therefore, it seems that the original single dotted rhythm, preserved in FE, was changed by Chopin into the double dotted rhythm in the base text to EE, from where it was copied to GC.

category imprint: Differences between sources

issues: Accompaniment changes , Dotted or even rhythm

b. 4-5

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

 from bar 4 in A (→FEEE) & 2nd time in GE

 from bar 5 in GE (first time)

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The first time, the  hairpins in GE begin only at the beginning of bar 5, which is most probably a routine revision (in the repetition the sign was reproduced accurately).

category imprint: Differences between sources

issues: GE revisions

b. 4

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

No mark in GC (→GE) & EE

Long accent in FE

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The exclusive presence of the accent in FE suggests that it was added by Chopin in the proofreading of this edition (or still in the handwritten base text). The length of the accent is indicated by its placement to the right from the note. Similarly in bar 8, where the sign is not only moved, but also longer.

category imprint: Differences between sources; Corrections & alterations

issues: Long accents , Authentic corrections of FE