Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 56

composition: Op. 10 No 10, Etude in A♭ major

 in A

No markings in FE (→GE,EE)

Our suggestion

..

Lack of the  mark in FE (→GE,EE) is probably a result of the engraver's oversight. In the main text we consider the mark written by Chopin in A and suggest an explanation, specifying its meaning in this context.

category imprint: Differences between sources; Editorial revisions

issues: Errors in FE , No pedal release mark

b. 57-58

composition: Op. 10 No 10, Etude in A♭ major

No slurs in A (→FEGE,EE3)

Slurs in EE4

..

The slurs in the L.H. added in EE4 are certainly non-authentic.

category imprint: Differences between sources

issues: EE revisions

b. 61

composition: Op. 10 No 10, Etude in A♭ major

No pedalling in A

Pedalling in FE (→GE,EE)

..

The pedalling originates from Chopin's proofreading of FE (→GE,EE).

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 62-70

composition: Op. 10 No 10, Etude in A♭ major

No pedalling in A

Pedalling in FE (→GE,EE)

..

The pedalling of bars 62-66 and 68-70 originates from Chopin's proofreading of FE (→GE,EE). The missing indications in FE (→GE) in bar 67 – see the note on this bar.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 63-64

composition: Op. 10 No 10, Etude in A♭ major

No fingering in A (→FEGE)

Fingering in EE

..

The fingering, added by Fontana in EE, generally results from Chopin's previous hints (in bars 28 and 45). The fact of copying the use of the 5th finger on d3 at the end of bar 63 seems to be unnecessary, as it is not the only comfortable possibility in this place.

category imprint: Differences between sources

issues: EE revisions