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Fingering

b. 27-28

composition: Op. 25 No 8, Etude in D♭ major

No fingering in A (→GE) & EE1

Fingering in FE

Fingering writteninto FED

..

Chopin added the fingering of the bottom voice most probably at the time of proofreading FE (also in bars 28 and 29). What draws attention is the fact that the composer considered the fingering of the top voice to be obvious – cf. the Etude in Gminor, No. 6, bars 14-15. The entry in FED proves that what was obvious to Chopin was not that obvious even for such a talented pupil as Miss O'Meara.

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FED , Authentic corrections of FE

b. 28

composition: Op. 25 No 8, Etude in D♭ major

No fingering in A (→GE) & EE1

Fingering in FE

Fingering in EE2 (→EE3)

..

The fingering of the beginning of the phrase was added by Chopin most probably at the time of proofreading FE. It was then repeated – with errors – in EE2 (→EE3). 

category imprint: Differences between sources; Corrections & alterations

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

b. 29

composition: Op. 25 No 8, Etude in D♭ major

No fingering in A (→GE) & EE

Fingering in FE

..

The fingering was added here by Chopin most probably at the time of proofreading FE.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 29

composition: Op. 25 No 8, Etude in D♭ major

Fingering written into FED

No teaching fingering

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FED

b. 32-33

composition: Op. 25 No 8, Etude in D♭ major

Fingering for 13 sixths in A & GE2 (→GE3)

Fingering for 24 sixths in FE

Fingering in GE1 (12 sixths)

Fingering for 13 sixths in EE

..

The partially different fingering of EE (the differences include 5 sixths, from the 6th to the 10th quaver in bar 32) is uncomfortable to such an extent that one can suspect a mistake of the engraver who could have, for example, mistaken the groups of quavers – he wrote the fingering of the 9th and 10th sixths over the 6th and 7th quavers, while he placed the numerals foreseen for the 5th-7th sixths over the 8th-10th quavers.
The fingering of the entire bar 33, present only in FE, was most probably added by Chopin in the proofreading.
GE1 omitted the numerals written at the beginning of bar 33 in A; the inaccuracy was corrected in GE2 (→GE3).

category imprint: Differences between sources

issues: Inaccuracies in GE , Errors in EE , Differences in fingering , Authentic corrections of FE