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


Rhythm

b. 48

composition: Op. 10 No 6, Etude in E♭ minor

..

In FE the dots extending the c1-ffourth were omitted, which is a patent error, corrected in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions

b. 50

composition: Op. 10 No 6, Etude in E♭ minor

Rhythm & c1 in A, interpretation

Supplemented interpretation of A

Rhythm & c1 in FE (→GE1GE1a)

Additional fingering in EE

Rhythm & c1 in GE2

Rhythm & c1-c1 in GE3 (→GE4) & EE4

Rhythm & c1 in GE5

..

The final version of the beginning of this bar is not entirely clear. A features a version with grace notes, yet written with a rhythmic error – the c1-ffourth is only a crotchet, without extending dots. It is most probably this error that caused that in FE the grace notes were interpreted as common semiquavers: . The traces of this version, rhythmically correct from the formal point of view, are visible in FE, yet Chopin corrected it afterwards, moving cto the beginning of the bar. According to us, at the time of performing this correction, the composer wanted to return to the intended version of A, which was however performed only in relation to the arrangement of c1 in the lower voice.

All accidentals added in GE and EE come from the revisers of these editions, while the  changing cto c1 in GE2 (→GE3GE4) distorted the harmonic content of this bar.

In the main text we add cautionary flats before a1 and c1; the first of them is already included in EE and GE2 (→GE3GE4GE5).

The accents and the fingering are discussed separately. 

category imprint: Interpretations within context; Differences between sources; Editorial revisions; Corrections & alterations

issues: Chopin's hesitations , GE revisions , Authentic corrections of FE

b. 50-51

composition: Op. 10 No 6, Etude in E♭ minor

Tie to B in A (→FEEE)

Slur in GE1

GE2 (→GE3GE4GE5)

..

The tie sustaining B was inaccurately reproduced in FE, as a result of which, in GE it was interpreted as a phrasing and articulation slur.

category imprint: Differences between sources

issues: Inaccuracies in FE , GE revisions

b. 51-53

composition: Op. 10 No 6, Etude in E♭ minor

E tied in A, GE2 (→GE3GE4GE5) & EE4

E repeated in FE (→GE1GE1a, →EE2EE3)

..

Lack of the ties sustaining the bass minims in FE is probably a result of lack of space at the bottom of the page. The revisers of GE2 (→GE3GE4GE5) and EE4 guessed Chopin's intention accurately.

category imprint: Differences between sources

issues: Errors in FE , GE revisions