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. 276-277

composition: Op. 44, Polonaise in F♯ minor

..

As in previous analogous places, in FE (→EE) the L.H. part octaves from the 2nd beat of b. 268 to the end of the 1st beat of b. 269 are written down in a simplified manner with the use of con 8va.

category imprint: Differences between sources

issues: Abbreviated notation of A

b. 276

composition: Op. 44, Polonaise in F♯ minor

..

We add cautionary naturals to the octave E1-E in the main text.

category imprint: Editorial revisions

b. 276

composition: Op. 44, Polonaise in F♯ minor

Crotchet a1 in GE1 & FE (→EE)

Crotchet f1-a1 in GE2

..

The version of GE2 is erroneous or arbitrary, perhaps introduced on the basis of the version of the sources – most probably erroneous – in b. 69.

category imprint: Differences between sources

issues: GE revisions

b. 276

composition: Op. 2, Variations, complete

No marks in AsI & A

Wedges in GE (→FE,EE)

Wedge & dot suggested by the editors

..

The missing staccato markings in A must be considered Chopin's inadvertence – the marks are present in all similar situations. The wedges added by GE are most probably inauthentic; however, even if they had been added at Chopin's request, it would have been an ad hoc correction, adjusted to the unifying manner of the engraver of GE1. Due to the above, in the main text we suggest adding marks in accordance with the consistent rule visible in A – wedges only for the bass notes on the main beats of the bar. 

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Authentic corrections of GE

b. 277-278

composition: Op. 39, Scherzo in C♯ minor

c2 in EE, FE & GE2

e2 in GC (→GE1)

..

The GC (→GE1) version, although harmonically and pianistically quite possible, is probably erroneous.

category imprint: Differences between sources

issues: Terzverschreibung error , Errors of GC