Issues : Errors in FE

b. 42

composition: Op. 10 No 11, Etude in E♭ major

f in A, GE & EE

g in FE

..

as the lowest note of the 3rd chord is almost certainly an error of the engraver of FE.

category imprint: Differences between sources

issues: EE revisions , Errors in FE , GE revisions

b. 44-46

composition: Op. 10 No 11, Etude in E♭ major

Arpeggio signs in A

No arpeggio signs in FE (→GE)

Arpeggio signs in EE

..

The missing arpeggios in the editions is most probably a result of distraction of the engraver of FE (the marks were added in EE in bar 46).

category imprint: Differences between sources

issues: Errors in FE

b. 44

composition: Op. 10 No 11, Etude in E♭ major

e in A, GE & EE

in FE

..

as the lowest note of the chord on the 2nd quaver in the bar is most probably the engraver's error. The note was changed to e both in GE and EE.

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Terzverschreibung error , GE revisions

b. 44

composition: Op. 10 No 11, Etude in E♭ major

b2 in A, GE & EE

a2 in FE

..

In FE the inner note of the chord on the 4th quaver is an erroneous a2. This patent error was corrected in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions

b. 48-49

composition: Op. 10 No 11, Etude in E♭ major

..

In A Chopin did not check the notation of accidentals in these bars. In each of them the  returning c4 in the 4th chord is missing, as well as the flats returning e1 in the 5th chord and b3 in the last one. In FE (→GE,EE) all necessary accidentals were added, same as cautionary naturals before c1 and flats before b. In FE, however, the  raising e3 to e3 in bar 49 was overlooked, which was corrected in GE and EE, as well as in FED. Moreover, we add a cautionary  before ain bar 49; the accidental was already added in GE and EE4 together with a less justified cautionary  before a.  

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , Annotations in FED , Omissions to cancel alteration , GE revisions , Errors of A , Authentic corrections of FE