Issues : Omission of current key accidentals

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b. 207

composition: (Op. 4), Sonata in C minor, Mvt IV

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In the 2nd half of the bar A does not include an accidental to the 2nd R.H. quaver, which results in a. In the next two bars, in which the same figure is repeated an octave or two octaves higher, the respective notes are provided with naturals. Therefore, there is no doubt that in the discussed bar Chopin overlooked the . It was added in GE (→FE,EE,IE).
In the main text we do not include the  to the last L.H. quaver, f, added in GE (→FE,EE,IE) – in this layout it is superfluous.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Omission of current key accidentals , Errors of A

b. 209

composition: Op. 31, Scherzo in B♭ minor

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A is missing the  raising g2 to g2. The patent inaccuracy was corrected both in FC (→GE) and FE (→EE). It is difficult to say conclusively who entered the  into FC, Chopin or Fontana. In turn, a diagonal cross, in pencil, visible in this place in A means that the missing mark was already noticed by the engraver of FE, as long as the mark comes from the time the Scherzo was published.

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals , Errors of A , FE revisions , Fontana's revisions

b. 211

composition: Op. 11, Concerto in E minor, Mvt III

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In FE (→EE1), there is no  lowering d​​​​​​​2 to d2. The accidental was added in GE and EE2 (→EE3).

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Omission of current key accidentals , Last key signature sign , Errors repeated in EE

b. 211

composition: Op. 12, Variations in B♭ major

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In FE the  raising f1 to f1 was omitted here. This patent mistake – see the R.H. part – was corrected both in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Omission of current key accidentals

b. 213

composition: (Op. 4), Sonata in C minor, Mvt I

..

In A the  raising f1 to f1 is missing. Chopin's mistake, patent in this context, was rectified by GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Omission of current key accidentals , Errors of A