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b. 39

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

..

In CLI and FEcor the  returning d1 on the 4th beat of the bar was overlooked, which is a patent error.

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Errors of CLI

b. 39

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

Crotchets in CLI & Ap

Different values in FE (→GE,EE

..

Same as in bars 4 and 12, the rhythmic corrections written in FEcor confirm that the crotchets in CLI and Ap are the original version changed by Chopin in all three analogous places.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 39

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

No mark in #Ao & FE (→EE,GE1GE1aGE2GE3)

Dot in GE4 (→GE5)

..

We add a staccato dot in keeping with marks written by Chopin into FEcor in the analogous bars 4 and 12. As Chopin added dots in neighbouring bars, his inadvertent omission of the mark rises no doubts here. The dot was added already in GE4 (→GE5).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 40

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

..

In CLI there are no naturals returning a1 and d2. The accidentals were also originally absent in FEcor, in which Chopin added both these two naturals and a third one returning f2 on the last semiquaver in the lower voice. Eventually, both FE (→GE,EE) and Ap have the correct notation.

category imprint: Interpretations within context; Differences between sources

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

b. 40

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

..

A cautionary natural before c1 in the L.H. was added in one of the last proofreadings of FE (→GE,EE). The manuscripts do not include an accidental in this place. 

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE