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. 295-304

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

No L.H. slurs in A (→GE1FE)

L.H. slurs in EE & GE2

..

The slurs in the L.H. added in bars 295-296, 299-300, 302 and 304 in EE and GE2 are almost certainly an arbitrary revision. See bars 297-298.

category imprint: Differences between sources

issues: EE revisions , GE revisions

b. 296

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

..

A has an aas the last note in the L.H. It is almost certainly a mistake – cf. analogous figures in bars 300, 302 and 304-306. Mistakes in the number of ledger lines are the most frequent pitch errors committed by Chopin (excluding those related to the notation of accidentals). GE (→FEEE) features the correct text, which can be ascribed to Chopin's proofreading or a fortunate mistake, since there are no visible traces of correction in print, whereas the note in A, despite three ledger lines, is written lower than the previous g1.
In the discussed place, there is a visible correction in A. The deletions are actually very precise, yet their placement allows us to indicate e1 and das possibly crossed out original (or only erroneous) last two notes.

category imprint: Interpretations within context; Differences between sources

issues: Errors resulting from corrections , Terzverschreibung error , Errors in the number of ledger lines , Errors of A , Authentic corrections of GE

b. 296

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

..

In FE1 the last note of the triplet is printed a third higher, by mistake, as a b1. The mistake was corrected in FE2, perhaps by Chopin.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , Authentic corrections of FE

b. 296

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

Wedge in A

Dot in GE1

No mark in FE (→EE)

Dots in both hands in GE2

..

The clear wedge of A is certainly the only authentic version of the markings of the 1st crotchet in the bar.

category imprint: Differences between sources

issues: Errors in FE , Inaccuracies in GE , GE revisions

b. 297-298

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

Motivic slurs in A (→GE1)

Whole-bar slurs in FE

Whole-bar slurs in both hands in EE

Motivic slurs in both hands in GE2

..

It cannot be excluded that the slurs of GE1, compliant with A, were corrected by Chopin in the last phase of proofreading, whereas the whole-bar long slurs of FE reproduce the state prior to the proofreading. Traces of such a change are visible in GE1 in a similar situation in bars 295-296. Anyway, the slurs of FE (→EE) are certainly erroneous, whereas the analogous slurs added in EE in the L.H. are inauthentic – it is difficult to assume that Chopin would order to copy an erroneous slurring. The slurs in the L.H. added in GE2 actually specify the notation of A, yet they cannot come from Chopin, since the edition was developed after his death on the basis of GE1 compared with A. In this situation, it can be considered almost certain that all slurs in the L.H. added in EE and GE2 in the entire section until bar 308 are an arbitrary revision – cf. notes on bars 293-294, 295-304, 301-302, 303-304 and 306-308.

category imprint: Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Authentic corrections of GE , Corrected slurs of Op. 21 in GE1