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b. 78

composition: Op. 10 No 12, Etude in C minor

Semibreves in A (→FEEE,GE1GE2)

Minims in GE3 (→GE4)

..

Shortening the length of the f1-a1 third and reduction of the number of voices are unjustified arbitrary changes of the engraver or reviser of GE3 (→GE4).

category imprint: Differences between sources

issues: GE revisions

b. 79-80

composition: Op. 10 No 12, Etude in C minor

Slur in A, interpretation

Slur in FE (→GE,EE

..

The slur of A is clearly inaccurate – it ends abruptly after the 3rd group of semiquavers in bar 79, yet its final range is unclear. In the main text we give a slur with which in FE the entire figuration in bars 79-80 was included (we interpret the slightly inaccurate beginning of the slur in accordance with the evident musical sense; it was understood the same in GE and EE). The slur probably corresponds to Chopin's entry in a proofreading of FE.

category imprint:

issues: Inaccurate slurs in A , Authentic corrections of FE

b. 79-81

composition: Op. 10 No 12, Etude in C minor

Dots in A

No marks in FE (→GE,EE

..

Lack of staccato dots at the beginning of bars 79 and 81 in the editions is most probably a result of negligence of the engraver of FE.

category imprint: Differences between sources

issues: Inaccuracies in FE

b. 80-81

composition: Op. 10 No 12, Etude in C minor

Literal reading of slur in A (→FEGE)

Slur in A, possible interpretation, slur in EE

Probable interpretation of slur in A

..

The slur of A runs to the end of bar 80 and this is how it was reproduced in FE (→GE), preserving the ambiguity. According to us, both natural in this context interpretations may correspond to Chopin's intention.

category imprint: Graphic ambiguousness; Differences between sources

issues: EE revisions , Inaccurate slurs in A

b. 80-81

composition: Op. 10 No 12, Etude in C minor

 in A

No markings in FE (→GE,EE

..

The visible in A dynamic indications of the phrase's ending were not included in FE (→GE,EE). We do not give them in the main text, as they describe a quite inconsequential detail, which is probably only one of a few possible solutions here; moreover, Chopin could have accepted their absence while proofreading FE.

category imprint: Differences between sources