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b. 74

composition: Op. 10 No 8, Etude in F major

..

At the beginning of the bar A have  before e1. The unjustified in this context sign was removed in the last proofreading of FE (→EE), not included in GE.
Also the  before the 3rd semiquaver in bar 75 is not justified with the previous flow of the music, yet we leave it due to e in the L.H. appearing in the middle of the bar. 

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE , Last key signature sign

b. 74

composition: Op. 10 No 8, Etude in F major

Long accents in A

Accent in FE (→GE)

Long accent in EE

..

In the main text we give two unambiguous long accents of A. Nevertheless, none of them was reproduced in FE (→GE,EE), in which there is however an accent in the middle of the bar (perhaps long, as it was reproduced in EE). The mark could have been added by Chopin, yet one cannot be certain whether it was correctly reproduced. Cf. the note on slurs.

category imprint: Differences between sources

issues: Long accents

b. 74

composition: Op. 10 No 8, Etude in F major

Slur in A

Literal reading of slur in FE (→GE,EE)

Possible interpretation of slur in FE

Our alternative suggestion

..

Same as in the case of accents, the difference between the slur of A and the one of FE (→GE,EE) is too big to be attributed only to the engraver's negligence. The mark visible in the editions probably appeared as a result of Chopin's proofreading, yet its range, unrelated to the natural voice-leading, suggests that the composer's annotation could have been misinterpreted. Therefore, in the main text we give the undoubtedly authentic notation of A, considering the literal reading and interpretation of the slur of FE as almost equal alternative possibilities. In addition, we give another possible reading of the slur in FE, inspired by the accent appearing in that edition, and combined with the probably overlooked slur and accent of A.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Authentic corrections of FE

b. 75

composition: Op. 10 No 8, Etude in F major

..

FE has the digit '1' over e2, which is a mistake. This patent error was corrected in GE and EE, as well as in FES

category imprint: Differences between sources

issues: Errors in FE

b. 75-76

composition: Op. 10 No 8, Etude in F major

No pedalling in A

Pedalling in FE (→GE1)

EE & GE2 (→GE3GE4)

Our suggestion

..

Chopin added the pedalling of these bars while proofreading FE (→GE,EE). We add the  mark, omitted in FE (→GE1) in bar 75, in accordance with the harmonic sense. The addition was also performed in EE and GE2 (→GE3GE4), yet adding the  mark earlier, already in the middle of the bar.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , Inaccuracies in FE , GE revisions , Authentic corrections of FE