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Op. 10 No 2, Etude in A minor

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b. 7

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

E-minor in CLI (interpretation) & Ap

E-minor in FE (→EE2→EE3)

E-major in GE1

E-major in GE2 (→GE3→GE4→GE5) & EE4
..

On the 2nd beat of the bar in the R.H. we give the E minor triad (with a  before g2) according to FE (→EE2→EE3) and Ap. The natural is, however, absent in FEcor and it was also not included in the copy which served as the base text for GE. In order to avoid the mode discrepancy between the parts of both hands, the reviser of GE1 took the decision to add a  raising g1 into g1 in the L.H. In GE2 and subsequent ones, an additional  was added before g2 in the R.H. These arbitrary changes were also introduced in EE4. 

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Omissions to cancel alteration , GE revisions , Authentic corrections of FE

b. 7

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

f1-a1 in CLI (interpretation)

d1-a1 in Ap

f1-b1 in FE (→GE,EE) 
..

In the main text we give b1, which Chopin introduced instead of previous a1 while still preparing the base text for FE (→GE,EE), as the topmost note of the chord. The inner note of the chord reveals Chopin's hesitation between f1 in CLI and FE (→GE,EE) and d1 in Ap. 

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes

b. 7

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

..

In the manuscripts there is no cautionary natural before g2.

category imprint: Differences between sources

issues: Cautionary accidentals

b. 7

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

..

In the sources there are sharps reminding of the already previously marked raise of these notes before the 8th and 12th semiquavers – a2 and f2. We do not consider them in the main text, as the correct text results here from both the rules on accidentals' validity and the melodic context and fingering. The sharp before a2 is included in CLI, GE2 (→GE3) and EE4. The sharp before f2 is present in FE (→GE1→GE2→GE3,→EE).

category imprint: Differences between sources

issues: Cautionary accidentals

b. 7

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

..

In Ap there is no  returning a2 at the 9th semiquaver of the bar. It must have been Chopin's oversight. 

category imprint: Differences between sources

issues: Omissions to cancel alteration , Errors of A