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b. 9-17

composition: Op. 10 No 2, Etude in A minor

No marks in CLI & Ap

Dots in FE (→GE,EE

..

All staccato dots in the part of the L.H. were written by Chopin himself in FEcor (→FEGE,EE).

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 9-13

composition: Op. 10 No 2, Etude in A minor

..

The cautionary naturals before c1 in the L.H. were added in bars 9 and 13 in one of the last proofreadings of FE (→GE). They are also included in EE, except for the  overlooked in bar 13 in EE2. The manuscripts do not include any signs in these places. 

category imprint: Differences between sources

issues: Cautionary accidentals , EE inaccuracies , Authentic corrections of FE

b. 9-14

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

No fingering in A

Fingering in FE (→GE

Fingering in EE

Our suggestion

..

In the main text we give the fingering added by Chopin in a proofreading of FE (→GE), completed with Chopin's fingering of identical figures in the following section of the Etude, in this case in bar 54 (cf. General Editorial Principlesp. 17). In EE Fontana developed the fingering of FE, copying Chopin's fingering from analogous figures and adding the indications in the descending fragments of the passages.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , Authentic corrections of FE

b. 9-16

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

..

We give the slurring of the figures in the L.H. in bars 9-10, 15 and similar in the entire Etude only in the standardised version, despite the fact that some of the slurs are inaccurately written. The regularity of the texture and a great number of repetitions of similar figures deny the intentionality of considering these minor divergences in transcriptions. Cf. the remark concerning dynamic hairpins. 

category imprint: Interpretations within context; Differences between sources

issues: Inaccurate slurs in A

b. 9-13

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

  in A

FE (→EE)

..

We give the pairs of hairpins, appearing under similar figures in the L.H. in these bars and their repetitions in the entire Etude, in a unified version for each of the sources, in spite of the fact that the marks differ in their range. Same as in the case of slurs, the regularity of the texture and numerous repetitions of similar figures contribute to the decision not to consider these minor divergences in transcriptions.

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in GE , Inaccuracies in FE , Scope of dynamic hairpins