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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)

..

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. 486

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

..

A (→GE1FE1) features a das the last quaver. At the same time, one can see that initially the entire last triplet was written a second lower – c1-d1-d2. Chopin corrected the first two quavers and most probably overlooked the third one, being in haste. Such a scenario is confirmed by the proofreading of FE2 (→EE) – almost certainly authentic – in which the note was changed to e2. An identical correction was performed in GE2, too.

category imprint: Interpretations within context; Differences between sources

issues: Corrections in A , Errors resulting from corrections , GE revisions , Errors of A , Authentic corrections of FE

b. 487

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

..

FE features an Aas the minim on the 2nd beat of the bar. If we take into consideration the piano part and this bar only, the note would be absolutely natural, yet in a broader context, it is obviously erroneous, since the stability of the bass note is out of the question in this place – cf. C-c in the double basses and cellos in Morch. The mistake was corrected in EE, most probably following the logic of the harmonic progression. Chopin did not notice this mistake both in the proofreading of FE (in spite of adding an accent!) and during lessons, which may mean that the pupil did not notice it either.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Terzverschreibung error

b. 491

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

b in chord in A & GE2

No b in GE1 (→FEEE)

..

The missing b in the chord on the 2nd crotchet is almost certainly a mistake of the engraver of GE1 (→FEEE). The note was added in GE2 on the basis of the clear notation of A.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 491

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

c1 in chord in A (→GE) & EE2 (→EE3)

No c1 in FE (→EE1)

..

The missing cbass note in the chord must be a mistake of FE (→EE1). The mistake was corrected in EE2 (→EE3), most probably on the basis of comparison with GE1.

category imprint: Differences between sources

issues: EE revisions , Errors in FE