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b. 8

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

a in FC (→GE) & EE2 (→EE3)

a in FE & EE1

..

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. 8-11

composition: Op. 25 No 5, Etude in E minor

..

Before g2 at the end of bars 8 and 11, GE added cautionary naturals. It is most probably an editorial revision. The addition was introduced – probably under the influence of GE – also in EE3.

category imprint: Differences between sources

issues: EE revisions , GE revisions

b. 8

composition: Op. 25 No 5, Etude in E minor

in chord in FC (→GE) & EE

f in FE

..

The version of FE (a chord with f) is a result of Chopin proofreading from the version of the remaining sources (a chord with a). The traces of performing changes in print are present in FE both in this bar and in analogous bar 105. In a similar place in bar 36, all sources feature a chord with f

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 8

composition: Op. 35, Sonata in B♭ minor, Mvt II

a in chord in GC (→GE) & FE2 (→EE,FE3FE4

a in chord in FE1

..

The version with a in FE1 is certainly not intended by Chopin, which is proved by the  before the note in the respective bar of the recapitulation, which was not written in the base text to FE, as well as the compatible text of the remaining sources in the discussed bar. The engraver, instead of a , wrote an erroneous  before this note (unjustified in this context).

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , FE revisions

b. 8

composition: Op. 35, Sonata in B♭ minor, Mvt II

No marks in GC (→GE)

Short accents in FE (→EE)

Different accents suggested by the editors

..

No accents in GC (→GE) is almost certainly an oversight of the copyist, who overlooked all signs between the staves in bars 7-13. The length of the 1st accent is confirmed by the notation of FE in bar 196, being a repetition of bar 8, and clearly longer signs in similar bar 28.

category imprint: Differences between sources

issues: Long accents , Inaccuracies in FE , Errors of GC