Issues : Last key signature sign

b. 8

composition: Op. 25 No 12, Etude in C minor

a in FC (→GE) & EE2 (→EE3)

a in FE & EE1

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It is hard to assume how the difference between the versions of FE and EE1 and these of FC (→GE) and EE2 (→EE3) occurred. In FC, the naturals introducing are written by the copyist, which means that they were present in the manuscript, probably an autograph copied by Fontana. Therefore, the absence of these signs in FE and EE1 could be explained by their later deletion by Chopin in the base texts to these editions. Hence a regular, chromatic progression of minor thirds in the middle voices would be then introduced only in bar 54 as a kind of variation of the repetition of this place. However, not being certain if it was so – the versions of FE and EE1 could have been results of mistakes – in the main text we give the undoubtedly authentic version of FC (→GE). 

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , Last key signature sign

b. 78-80

composition: Op. 25 No 12, Etude in C minor

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In FC (→Ge), there are cautionary naturals before the d1 notes at the end of bars 78 and 80. The latter – in bar 80 – was added also in EE3. In the main text we do not include these signs. 

category imprint: Differences between sources

issues: EE revisions , Cautionary accidentals , Last key signature sign