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. 28

composition: Op. 2, Variations, complete

Dotted semiquaver in AsI, contextual interpretation

Semiquaver & rest in A (→GEFE,EE,FESB)

category imprint: Interpretations within context; Differences between sources

issues: Errors resulting from corrections , Rhythmic errors

b. 30-32

composition: Op. 2, Variations, complete

Crotchets after minims in AsI & A (→GEFESB)

Various rhythms in FE

Crotchets and minims together in EE1

Notation with rests in EE2 (→EE3)

..

As before, FE, and particularly EE1, distorted the notation of the accompaniment by placing some (FE) or all (EE1) dotted crotchets directly next to the minims, which suggests that they should be performed simultaneously. In EE2 (→EE3), the misleading notation of EE1 has been partially corrected.

category imprint: Differences between sources

issues: EE revisions , Inaccuracies in FE

b. 30

composition: Op. 2, Variations, complete

g3 repeated in AsI, contextual interpretation

g3 tied in A (→GEFE,EE,FESB)

..

According to the editors, the lack of a tie to g3 in #ApI may just be Chopin's oversight (the missing before this crotchet is definitely an error).

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals

b. 37-38

composition: Op. 2, Variations, complete

g1 tied in AsI & A

g1 repeated in GE (→FE,EE)

..

The missing ties to g1 in these bars could be easily considered oversights of the engraver of GE (→FE,EE), particularly since they are poorly visible in A. However, 4 bars later, in an analogous phrase, the respective ties to c2 are present neither in the editions nor in A, which makes us consider possible Chopinesque corrections to the discussed bars in GE1. According to us, it is also highly likely that even if the ties were overlooked, Chopin accepted repeated g1, resulting in an ability to shape more dynamic nuances in this fragment, of a clearly agitato nature. 

category imprint: Differences between sources

issues: Errors in GE , Authentic corrections of GE

b. 41-42

composition: Op. 2, Variations, complete

c2 tied in AsI

c2 repeated in A (→GEFE,EE)

..

Due to the reasons discussed in b. 37-38 (the ties could have been overlooked by Chopin), we consider the version of AsI an acceptable variant. 

category imprint: Differences between sources

issues: Errors of A