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. 40

composition: (Op. 4), Sonata in C minor, Mvt III

d in A (literal reading→GEEE,IE)

d in A (contextual interpretation) & FE

..

According to us, leaving the third semiquaver from the end without an accidental, which results in d, is Chopin's mistake. It is true that e on the last semiquaver could be regarded as a resolution of this d note; however, it would require a particular performance, marked with a respective indication, e.g.:  . Nevertheless, even when performed as such, this version does not fit with the smorzando and the ongoing tensions' release; moreover, this version unnecessarily anticipates a much nobler effect used by Chopin in the next bar.
The flat restoring d was added only in FE.

category imprint: Differences between sources; Editorial revisions

issues: Omissions to cancel alteration , Errors of A , FE revisions , Errors repeated in GE , Errors repeated in EE , Errors repeated in IE

b. 41

composition: (Op. 4), Sonata in C minor, Mvt III

Slurs from f & b in A

No slurs in GE (→FE,EE,IE)

Slurs from d & b suggested by the editors

..

The A slurs are poorly visible, as a result of which the GE engraver could have overlooked or even ignored them. In the main text we lead the bottom slur from d, in accordance with the notation in bar 1, undoubtedly more careful.

category imprint: Differences between sources; Editorial revisions

issues: Inaccurate slurs in A , Errors in GE

b. 42

composition: (Op. 4), Sonata in C minor, Mvt III

R.H. arpeggio in A

Arpeggio from A1 in GE (→FE,EE,IE)

..

Providing the L.H. octave with an arpeggio was an arbitrary decision of GE (→FE,EE,IE). According to us, this version, however, may be considered an acceptable variant.

category imprint: Differences between sources

issues: GE revisions