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. 128-129

composition: Op. 23, Ballade in G minor

No indication in A

cresc. - - - - in FE (→EE)

cresc. - - in GE

cresc. in GE1a

..

Both the range of the dashes marking the range of cresc. having been shortened and them having been overlooked resulted from inaccuracies by the engravers of GE1 and GE1a, respectively. 

category imprint: Differences between sources

issues: Inaccuracies in GE , Authentic corrections of FE

b. 129-130

composition: Op. 23, Ballade in G minor

..

In A, the slur at the end of b. 129, the last on the page, clearly suggests that it should be continued, yet there is no ending thereof in b. 130. We assume – as FE (→GE,EE) did – that it reaches b, the 1st crotchet in b. 130. 

category imprint: Graphic ambiguousness; Source & stylistic information

issues: Inaccurate slurs in A , Uncertain slur continuation

b. 132-133

composition: Op. 23, Ballade in G minor

..

In these bars, Chopin overlooked in A all necessary flats lowering a1 and a2 to a1 and a2 (in both hands). The accidentals were already added by FE (→GE,EE).

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals , FE revisions , Inaccuracies in A

b. 134-135

composition: Op. 23, Ballade in G minor

Figuration from c4 in A

Figuration from b3 in FE (→GE,EE)

..

The version introduced at the stage of proofreading FE (→GE,EE), certainly by Chopin, is definitely an improvement – the connection with the previous bar is smoother, while the shape of the applied motif refers to b. 126-129. The notation of A does not include any of the two necessary flats to a3.

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

issues: Omission of current key accidentals , Authentic corrections of FE , Main-line changes , Inaccuracies in A

b. 136

composition: Op. 23, Ballade in G minor

più vivo in A

No indication in FE (→GE,EE)

..

The più vivo indication was entered into A instead of the earlier sempre più vivo (which was deleted). According to us, the omission of sempre could have been correlated with it having been added before più animato in b. 126 (that sempre having been added later is evidenced by an unnaturally greater gap between sempre and più than between più and animato). In this situation, forgoing the indications in two places for a single più animato in b. 126, which we can see in FE (→GE,EE), can be considered the last stage of shaping the agogic changes in this fragment – Chopin could have assumed that such a solution would define here the relationships between the tempi in a simplest and most accurate manner, since it is from this bar that a new section begins, featuring a clearly different texture.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Errors in FE , Corrections in A , Deletions in A , Authentic corrections of FE