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. 244

composition: Op. 42, Waltz in A♭ major

No mark in FE, GE & EE

Wedge in FEG

Our variant suggestion

..

The wedge written by Chopin in FEG was not included in GE, which is most probably a result of the engraver's inattention. As it is also absent in FE and EE, we leave the inclusion of this indication at the discretion of the performer. 

category imprint: Differences between sources; Corrections & alterations

issues: Errors in GE , Authentic corrections of GE

b. 244-260

composition: Op. 42, Waltz in A♭ major

No pedalling in FE0 (→EE,FEGGE)

Pedalling in FE1

..

On this page of the Waltz, Chopin added pedalling only in the proofreading of FE.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 244-245

composition: Op. 35, Sonata in B♭ minor, Mvt II

One  in GC (→GE) & FE

Four  in EE

..

Same as in bars 56-57, Chopin most probably added three  signs, while preparing the base text to EE.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of EE

b. 244

composition: Op. 35, Sonata in B♭ minor, Mvt II

..

Overlooked naturals before the octaves in the L.H. – see bar 56.

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

issues: EE revisions , Accidentals in different octaves , Inaccuracies in FE , GE revisions , Omission of current key accidentals , EE inaccuracies , FE revisions

b. 244

composition: Op. 21, Concerto in F minor, Mvt I

..

The bar is not written correctly in any of the sources. In A four signs are missing: a  before the 5th semiquaver (d2) and flats before the 7th semiquaver (b) and before the last two semiquavers (b2 and d2). In GE (→FEEE) only two signs were added: a necessary  before the 5th semiquaver (d2) and a cautionary  before the 14th semiquaver (d3). Moreover, A repeated a  before the bottom note of the last quaver in bar 244. The unnecessary sign was removed in EE1 (→EE2) and in GE2, but it was restored in EE3.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Accidentals in different octaves , Errors in EE , Errors in GE , GE revisions , Omission of current key accidentals , Inaccuracies in A