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b. 24-25

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

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In the main text we add cautionary signs: flats on the 4th quavers in these bars and a natural before c2 in bar 25. 

category imprint: Editorial revisions

b. 24

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

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A does not have an accidental before the topmost note in the 1st chord. The patent inaccuracy was corrected in GE (→FEEE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Inaccuracies in A

b. 26

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

b1 in A (→GE)

Fourth in FE (→EE)

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The fnote on the 2nd quaver of the bar was added – most probably on Chopin's demand – in the proofreading of FE (→EE).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 28

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

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In A there is no  raising d to d. The use of din the part of the R.H. proves Chopin's mistake, corrected already in GE1 (→FEEE, →GE2). 

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals , Errors of A , Authentic corrections of GE

b. 29

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

B-c-e-g in A

B-d-e-g in GE & EE

Different chords in FE

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The version of GE is almost certainly erroneous: the engraver of GE1 generalised the pattern of the previous bars, in which the chords are unchanged. The version is contrary both to A and Morch, in which in the oboe and 2nd violin parts there is cafter the preceding it d2. FE repeated the mistake of GE1 and added a new one, by overlooking in the last chord. A possibility of a Chopin proofreading in any of these editions is, according to us, to be excluded in this case. 

category imprint: Differences between sources

issues: Errors in FE , Errors in EE , Errors in GE