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. 12

composition: Op. 10 No 4, Etude in C♯ minor

f-c1-f1 in AI

f-a-c1-f1 in FE (→GE,EE)

..

The absence of in the chord in the L.H. on the 1st quaver is the original version, proved by AI. Similarly in analogous bar 62.

category imprint: Differences between sources; Corrections & alterations

b. 12

composition: Op. 10 No 4, Etude in C♯ minor

No marks in AI

Dots in FE (→GE,EE)

..

Lack of the staccato dots in AI is probably a reflection of a less accurate notation in this working manuscript. Nothing points to the fact that Chopin could have imagined performance of this octave passage in another articulation.

category imprint: Differences between sources

b. 13

composition: Op. 10 No 4, Etude in C♯ minor

Accent in AI

Four accents in FE (→GE,EE)

..

In the main text we give four accents visible in FE (→GE,EE). The change of the markings' concept – with respect to AI – is also visible in the part of the R.H.

category imprint: Differences between sources

b. 13-15

composition: Op. 10 No 4, Etude in C♯ minor

Accents in AI

 in FE (→GE,EE)

Our variant suggestion

..

At the beginning, Chopin marked the dynamic highlight of the endings of these bars with long accents (AI), which he then replaced with hairpins and the crescendo indication (editions). According to us, the indications do not have to be incompatible (cf. analogous bars 63-66), hence in the main text we suggest a possibility of considering the accents. 

category imprint: Differences between sources

issues: Long accents

b. 13-17

composition: Op. 10 No 4, Etude in C♯ minor

Fingering numeral in AI

No fingering in FE (→GE)

Fingering in EE

Our variant suggestion

..

In the main text we take into account the fingering numeral written in AI. In EE Fontana added the fingering in the entire four-bar section.

category imprint: Differences between sources

issues: EE revisions