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b. 233

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

d in A (→GE), EE & FES

f in FE

..

The logic of the figuration's structure and a comparison with analogous bar 235 point to a Terzverschreibung error of FE. The conclusion finds confirmation in a correction of this note performed in pencil – perhaps with Chopin's hand – in FES.

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , Terzverschreibung error , Annotations in FES

b. 233

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

in A (→GE)

in FE (→EE)

..

The change of  to  is a relatively frequent mistake in the first editions; however, it is generally encountered when the base text to an edition was a manuscript. 

category imprint: Differences between sources

issues: Errors in FE , fz – f

b. 233-235

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

No fingering in A (→GE)

Fingering in FE (→EE)

..

The fingering of the first two semiquavers was added by Chopin, while proofreading FE (→EE). See also bar 237.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 234-237

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

 in bars 235 & 237 in A

 in bars 234 & 237 in GE1 (→FEEE)

 in bars 234 & 236 in GE2

..

The notation of A suggests that Chopin wanted to place the  signs after the bar line, hence at the beginning of bars 235 and 237. In GE1 (→FEEE) it was performed only for the second time, whereas in GE2, which was changed in GE2 to a standard notation with  asterisks at the end of bar 234 and 236.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in GE , GE revisions

b. 234

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

..

The flat before ewas added in GE (→FEEE).

category imprint: Differences between sources

issues: GE revisions , Cautionary accidentals