Issues : Inaccuracies in A

b. 478-479

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

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Just like in the previous passages, Chopin wrote the necessary accidentals in A only in the first triplet in each bar. All necessary signs, including the cautionary  before fin bar 479 were added in GE (→FEEE). Moreover, GE2 added two more cautionary naturals before f2 and f. In the main text, we omit the latter.

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

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A

b. 479-480

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

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The overlooked accidentals in A before the top notes of the second octaves in the L.H. were added already in GE (→FEEE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A

b. 485

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

c4 & c3 in A (literal reading→GE)

Thirds in A (contextual interpretation) & FE (→EE)

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The absence of aand aon the 1st and 4th quavers in the bar in GE must be attributed to an extremely inaccurate notation of A in this respect; according to us, Chopin did write these notes in that place, yet, being in haste, he did not check whether they are visible in the place where the stems overlap with ledger lines. The fact that both notes were added in the proofreading of FE (→EE) dissipates all doubts regarding the composer's intention. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Authentic corrections of FE , Uncertain notes on ledger lines , Inaccuracies in A

b. 493-494

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

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A lacks in the Solo marking, which most probably resulted from haste – this otherwise obvious marking is present both in Morch and GE (→FEEE). Due to a misunderstanding of the notation of GE1, the marking was placed in FE (→EE) over bar 493.

category imprint: Differences between sources; Editorial revisions

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