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b. 41

composition: Op. 30 No. 1, Mazurka in C minor

..

In FC (→GE) there is no  raising a1 to a1 on the last quaver in the bar. According to us, the mistake could have already been committed by Chopin in [A]. It is indicated by overlooked naturals also in bar 43 – two oversights of the very naturals to a notes seem highly unlikely for a copyist; however, they are not unusual in Chopin's autographs, who would often mark alterations only the first time a given note appears in a bar.

category imprint: Interpretations within context; Differences between sources

issues: Errors of FC , Errors repeated in GE

b. 43

composition: Op. 30 No. 1, Mazurka in C minor

..

The naturals to the L.H. octave on the 2nd beat of the bar are missing in FC – the visible pencilled naturals were added by the reviser of GE1. It is difficult to say whether it is an oversight by Fontana or by Chopin in [A]. All editions contain the correct text.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Foreign hand additions in manuscripts , Errors of FC

b. 44

composition: Op. 30 No. 1, Mazurka in C minor

b in FC (→GE) & FE

b in EE

..

The version featuring b resulted from a mistake or inaccuracy by Chopin in [A] – the  to the 1st third was written there in such a way that both Fontana and the engraver of FE put it before d1, where it has no purpose. It must have been b, which, however, was noticed only in EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidental below/above the note , Errors repeated in GE , Errors repeated in FE