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b. 29

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

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GE1 has an erroneous G instead of F as the 2nd semiquaver, which was corrected in GE2 (→GE3).

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 42-43

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

..

In FC one can see corrections of the 10th and 13th semiquavers in both bars and of the 5th and 8th semiquavers in bar 43. Everywhere, c2(3) notes were erased and b1(2) added. It is most probably an auto-correction of the copyist, which is proved by the typeface of naturals before the added notes and lack of visible corrections (although they are not entirely excluded) in the notation of three notes. On the other hand, if the text was clear in the copied manuscript (probably [A]), without corrections, such a significant mistake of such an experienced copyist as Fontana (after all, a professional composer and pianist) seems to be inexplicable. Therefore, what we see may be a preserved trace of the authentic original version of these bars, in which the middle note in the R.H. was always (in different octaves).

category imprint: Corrections & alterations; Source & stylistic information

issues: Accompaniment changes , Authentic corrections of FC

b. 46

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

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GE1 added a cautionary  before the 9th semiquaver in the L.H. The unnecessary sign was removed in GE2 (→GE3), yet repeated in EE3.

category imprint: Differences between sources

issues: EE revisions , GE revisions

b. 52

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

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GE1 has an erroneous instead of as the last semiquaver in the L.H., which was corrected in GE2 (→GE3).

category imprint: Differences between sources

issues: Errors in GE , GE revisions

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