Issues : 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

b. 17-20

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

No fingering in A

Fingering in FE (→GE)

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The fingering in bars 17-19 was added by Chopin in a proofreading of FE (→GE). We give it in the main text except for the erroneous digit over the last triad in the R.H. in bar 17, which is discussed separately. In EE Fontana entirely included Chopin's fingering and added his suggestions in the 2nd half of bar 17 and in bars 19-20.

category imprint: Differences between sources

issues: EE revisions , Authentic corrections of FE

b. 23

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

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In the chord in the middle of the bar, Chopin overlooked the  returning in A. However, two notes later he added a cautionary natural before (arranged a little bit too high).

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE , Accidental below/above the note , Last key signature sign

b. 26

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

Octave in A

No G1 in FE (→GE)

No G1 in EE

Our variant suggestion

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It is unclear whether the lack of the bottom note of the octave (G1) in FE (→GE,EE) is a result of the engraver's inaccuracy or Chopin's intervention. The fingering (the 1st finger changed to the 3rd one), which is justified only with an octave being struck, yet it can also be used on a single note (in EE it was changed to the one matching the version without the bottom note), does not help to solve this issue. We trust more the version of A, therefore, in the main text we depend chiefly on it.

category imprint: Differences between sources

issues: Errors in FE , Authentic corrections of FE