Issues : Authentic corrections of FE

b. 39

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

..

The cautionary flats before the octave in the L.H. and b in the R.H. were added in a proofreading of FE (→GE,EE). Chopin wrote the flat before g1 already in A

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE

b. 42-43

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

No a in A

a in FE (→GE,EE)

..

In the main text we give the version of the last semiquaver, introduced by Chopin in a proofreading of FE (→GE,EE).

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 44-45

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

g repeated in A

g tied in FE (→GE,EE)

..

The missing tie sustaining in A is most probably Chopin's mistake, who added it in a proofreading of FE (→GE,EE). Cf. bars 12-13. 

category imprint: Differences between sources

issues: Errors of A , Authentic corrections of FE

b. 45

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

 in A

FE (→GE1,EE)

GE2 (→GE3GE4GE5)

Our suggestion

..

Allegedly, the mark of A was supposed to have a similar range as in the significantly less carefully written bars 5 and 13. The notation of A shows signs of underdevelopment and haste in this aspect, e.g., lack of the tie sustaining (while the tie of eis marked only in bar 44, at the end of the line), lack of the dot extending the e1 minim, lack of the  returning g in bar 46. Therefore, in the main text we suggest the indications used by Chopin in bars 5 and 13.

The character of the  hairpins in FE (→GE1,EE) is actually the one of a long accent nature, yet it is uncertain whether their arrangement in the 1st half of the bar was a result of Chopin's intervention or of the engraver's inaccuracy. In subsequent GE,s the mark was arbitrarily extended with an unexpected consistency (which is averaged by us).

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Authentic corrections of FE

b. 46

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

..

In A there is no  returning g, which is a patent error, corrected in a proofreading of FE (→GE,EE). Cf. bars 6 and 14.

category imprint: Differences between sources

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