Issues : Errors repeated in EE

b. 22

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

..

None of the editions added the naturals returning f3 and f that Chopin overlooked in A.

category imprint: Interpretations within context; Editorial revisions

issues: Accidentals in different octaves , Errors in GE , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 23

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

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In the sources there is no  returning a2, which is a patent inaccuracy.

category imprint: Editorial revisions

issues: Accidentals in different octaves , Errors in GE , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 40

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

..

On the 3rd beat of the bar A does not have flats lowering c1(2) to c1(2), which is Chopin's patent oversight: the A minor key is valid already from bar 37 and in the discussed bar it was confirmed by a  before the top most note of the passage in the 1st half of the bar. The sign in the R.H. was added already in GE (→FEEE), whereas the  in the L.H. was added only in GE2

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: Accidentals in different octaves , GE revisions , Omission of current key accidentals , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 77

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

Hemidemisemiquavers in A & FE

Demisemiquavers in GE & EE

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Longer rhythmical values of the roulade in GE are certainly erroneous, although Chopin did sometimes use this kind of notation (cf. bar 41). The error was corrected in FE, possibly by Chopin. The demisemiquavers in EE also are supposedly a mistake.

category imprint: Differences between sources

issues: Errors in GE , Authentic corrections of FE , Errors repeated in EE