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b. 231-232

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

Slur to f1 in A, FE (→EE) & GE2

Slur to c2 in GE1

..

Shortening of the slur in GE1 is certainly an inaccuracy stemming from the transition into a new line. The inaccuracy was corrected both in FE (→EE) and in GE2. In the case of FE, Chopin's proofreading cannot be ruled out.

category imprint: Differences between sources

issues: Inaccuracies in GE , GE revisions , Authentic corrections of FE

b. 235

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

 in A (literal reading→GE1FE) & GE2

No sign in GE1a

 in A (contextual interpretation) & EE

..

When interpreted literally, the  sign in A (→GE1FE) suggests pressing pedal on the 5th, 6th or even 7th quaver in the bar. According to us, it is an inaccurate notation – Chopin had already little space under the note and writing the sign before would be even more misleading. According to us, it is EE that interpreted the composer's intention correctly.

In all copies of GE1a, the discussed sign was overlooked as a result of an inaccurately performed graphic proofreading of bars 235-236.

category imprint: Graphic ambiguousness; Differences between sources

issues: EE revisions , Errors resulting from corrections , Errors in GE , Inaccuracies in A

b. 235

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

Long accent in A (→GE1FE)

No mark in GE1a

Short accent in EE & GE2

..

Change of the type of accent to short is one of many inaccuracies of this kind in EE and GE2.
In all copies of GE1a, the discussed sign was overlooked as a result of an inaccurately performed graphic proofreading of bars 235-236.

category imprint: Differences between sources

issues: Long accents , Errors resulting from corrections , Errors in GE

b. 235

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

Single-voice notation in A

Quaver g2 in upper voice in GE (→FEEE)

..

Separating the gquaver may be a specification of notation introduced by Chopin in the proofreading of GE1 (→FEEE, →GE2).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of GE

b. 236-237

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

Continuous slur in A (→GE1, contextual interpretation)

Separate slurs in FE (→EE) & GE2

..

In GE1, the slur in bar 236, at the end of the line, indicates continuation, which, however, is not confirmed by the slur in bar 237. This ambiguous notation was interpreted contrary to the notation of A both in FE (→EE) and GE2. It is worth observing that the compliance of the slur of GE1 in bar 236 with A is a result of intense proofreading – originally, the entire line (bars 232-236) was provided with one-bar slurs. At the same time, the traces of the changes in bars 235-236 became so visible over time that GE1a was reengraved in this place. The oversight of the dashes marking the range of validity of the octave sign at the end of bar 236 was a side effect of this retouch. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in GE , Errors resulting from corrections , GE revisions , FE revisions , Corrected slurs of Op. 21 in GE1