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. 301-302

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

Whole-bar slur in A (→GE1FE)

Whole-bar slurs in both hands in EE

Motivic slurs in both hands in GE2

R.H. motivic slur suggested by the editors

..

The slur of A (→GE1FE) is probably the original version – in analogous bars 295 and 297 Chopin extended similar slurs. The slurs in the L.H. added in EE and GE2 are inauthentic. Cf. bars 303-304 as well as 297-298.

category imprint: Differences between sources

issues: EE revisions , GE revisions

b. 301

composition: Op. 44, Polonaise in F♯ minor

..

In the main text we add cautionary naturals to the D-d octave.

category imprint: Editorial revisions

b. 301-302

composition: Op. 44, Polonaise in F♯ minor

No slur in GE

Slur in bar 301 in FE (→EE)

Slur based on GE, our suggestion

..

In the manuscripts these bars were almost certainly marked in an abridged manner as a repetition of b. 68-70. It means that the slur present in [A] (→GE) in b. 68-69 should be in GE also in this place, yet it was overlooked by the engraver. As we adopted that slur to the main text the first time, we also suggest it here.

category imprint: Differences between sources; Editorial revisions

issues: Errors in GE

b. 301

composition: Op. 2, Variations, complete

..

The cautionary natural specifying the sound of the 2nd semiquaver was added in the stage of proofreading FE1 (→FE2), probably at Chopin's request. It is worth noting that it was only in the editions that a clear need for this accidental manifested itself, in which the last semiquaver in the previous bar is provided with a flat – in A there is no accidental to any of these notes. 

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE

b. 302-304

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

Long accents in A

Short accents in GE (→FE)

Vertical accents in EE

..

The evident long accents in A in the middle of bars 302 and 304 were reproduced in GE (→FE) as short ones, whereas in EE they were changed to vertical. It is certain that none of the changes comes from Chopin.

category imprint: Differences between sources

issues: Long accents , EE revisions , Inaccuracies in GE