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. 1

composition: Op. 10 No 12, Etude in C minor

in A

in FE (→GE,EE

..

The  indication in A is not legible enough and it could have been misunderstood by the engraver. In spite of this, in the main text we give  included in FE (→GE,EE), as the performance indications in FE were undoubtedly controlled by Chopin and even if he did not correct this indication, he certainly had an opportunity to accept it.

category imprint: Differences between sources

issues: Inaccuracies in FE , Authentic corrections of FE , fz – f

b. 1-6

composition: Op. 10 No 12, Etude in C minor

Possible long accents in A

Possible short accents in A (→FEGE,EE)

..

Determining which type of accents Chopin had in mind at the time of writing A is not an easy task. The marks have different length, yet it is rather a result of a hasty notation than the will to differentiate them. According to us, this fact supports the decision to consider them as short accents, being the most natural solution in this context. This is how they were reproduced in FE (→GE,EE). Due to the described doubts, we also give long accents as a possible interpretation of A.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents

b. 1-6

composition: Op. 10 No 12, Etude in C minor

No fingering in A

Fingering in FE (→GE)

Fingering in EE

..

In the main text we give the fingering added by Chopin in a proofreading of FE (→GE). The fingering in the L.H. was added by Fontana in EE, who copied Chopin's fingering from analogous figures.

category imprint: Differences between sources

issues: EE revisions , Authentic corrections of FE

b. 1

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

in A (contextual interpretation)

in FE1

in FE2

in GE

in EE3

in EE4

..

In A of this Etude Chopin wrote only the following opus number instead of a title, which certainly does not equal the fact that he wanted to waive the name Etude used in the autographs of other etudes (No. 5-8 and 12). In the main text we give the title and dedication in the undoubtedly authentic version adopted in FE. The extensions of both the title (in GE and EE) and the dedication (in EE) most probably come from the editors. See the Etude in C major, No. 1, bar 1.

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Dedications , GE revisions

b. 1

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

 in A

 in FE (→GE,EE)

Our variant suggestion

..

In the version for publication the dynamics of the Etude remains undefined until bar 26. Although Chopin could have accepted this state of affairs, it seems right to give the hint written in A (in a variant form) in the main text.

category imprint: Differences between sources

issues: Inaccuracies in FE , No initial dynamic marking