Issues : Authentic corrections of FE

b. 58

composition: Op. 10 No 12, Etude in C minor

No accidental in A

Natural in FE (→GE,EE)

..

The natural added in a proofreading of FE (→GE,EE), probably by Chopin, is almost certainly a correction of a mistake and not a change of the original version.

category imprint: Differences between sources

issues: Omissions to cancel alteration , Errors of A , Authentic corrections of FE

b. 65-68

composition: Op. 10 No 12, Etude in C minor

No fingering in A

Fingering in FE (→GE

Fingering in EE

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In the main text we give the fingering added by Chopin in a proofreading of FE (→GE). We do not include detailed additions performed by Fontana in EE. See also the note in bar 67.

category imprint: Differences between sources

issues: EE revisions , Authentic corrections of FE

b. 65

composition: Op. 10 No 12, Etude in C minor

..

In A there are no accidentals before the chord on the 4th beat of the bar. This patent oversight was corrected in FE (→GE,EE).

category imprint: Differences between sources

issues: Omission of current key accidentals , Errors of A , Authentic corrections of FE

b. 67

composition: Op. 10 No 12, Etude in C minor

..

A does not include the  before the topmost note of the chord on the 3rd beat of the bar. This patent oversight was completed in FE (→GE,EE). In turn, in all sources, except for GE3 (→GE4), there are unnecessary flats before c2 in this chord and before f2 on the 4th beat of the bar.

category imprint: Differences between sources

issues: Accidentals in different octaves , GE revisions , Cautionary accidentals , Errors of A , Authentic corrections of FE

b. 68

composition: Op. 10 No 12, Etude in C minor

in A (→FEGE)

d in EE

..

In the main text we give (with a cautionary ) after A. In FE there are two accidentals before this note,  and , one on another. It is an easier performed correction, however, it is unclear which of the signs was supposed to be removed and which should be considered as binding. GE includes a  and EE – 

category imprint: Graphic ambiguousness; Differences between sources

issues: Errors in FE , Errors in EE , Cautionary accidentals , Authentic corrections of FE