Issues : Errors of A

b. 8

composition: Op. 10 No 6, Etude in E♭ minor

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In A there is no  returning don the penultimate semiquaver in the R.H. The natural next to the subsequent note proves that Chopin forgot about the existence of d1 at the beginning of the bar. The sign was added in a proofreading of FE (→GE,EE).

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE

b. 12-13

composition: Op. 10 No 6, Etude in E♭ minor

not tied in A (→FEGE,EE)

Our suggestion

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We consider the lack of hold of as an error of A, which was not corrected in any of the subsequent sources. Chopin's more relaxed approach at the time of writing the first phrase of the Etude is indicated by other undeniable mistakes – lack of  before d at the beginning of bar 12 and, above all, overlooking the accidentals in bar 15.

category imprint: Editorial revisions

issues: Errors of A

b. 13-14

composition: Op. 10 No 6, Etude in E♭ minor

No tie in A

Tie in FE (→GE,EE)

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Lack of the tie sustaining a in A is most probably a mistake, which is confirmed by the tie added by Chopin in a proofreading of FE (→GE,EE).

category imprint: Differences between sources

issues: Errors of A , Authentic corrections of FE

b. 15

composition: Op. 10 No 6, Etude in E♭ minor

f1 & f in A

f1 & f in FE

GE & EE

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The version of A may be the inadvertently left original edition of this bar (or maybe even of bar 7). In any case, a proofreading of FE – despite a possible error in the 2nd half of the bar – does not leave any doubts concerning the final intention of the composer. The natural returning f, which in FE is only before the penultimate note of the bar, was moved before the 7th semiquaver in GE and EE, which may render Chopin's intention accurately. 

category imprint: Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Errors of A , Authentic corrections of FE

b. 15

composition: Op. 10 No 6, Etude in E♭ minor

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The  returning g, without a doubt omitted in A by mistake, was added in a proofreading of FE (→GE,EE).

category imprint: Differences between sources

issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE