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Op. 10 No 2, Etude in A minor

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Rhythm

b. 4

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

..

Here, as well as in bar 12, yet not in bar 39, Chopin deleted semiquaver flags for the d1-a1 tritone in the lower voice in FEcor, thus changing its rhythmic value for a crotchet. However, the correction was not included in FE (→GE,EE), despite the fact that the cancellation of those changes was not explicitly marked:

  • in bar 4, next to the clearly deleted flags, there is a semiquaver-like sign, which may possibly be interpreted as a signal to return the flags; 
  • in bar 12 the flags' deletion was left without a commentary, yet in the margin a remark was deleted – not entirely legible – which probably concerned deletion of those flags.

It can be observed that the initial and, as it turned out, the final concept of the homogenous part of the R.H. in terms of sound and pianistics was subject to internal verification by Chopin until the very end of the Etude's publication process. See bars 3-4. 

category imprint: Corrections & alterations; Source & stylistic information

issues: Chopin's hesitations

b. 7

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

Crotchets in CLI & Ap

Quavers & rests in FE (→GE,EE) 
..

The alignment of the notation of the L.H. to the rhythm of the previous bars introduced in FEcor (→FE→GE,EE) is an undeniable improvement.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 9-15

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

Semiquavers in CLI & FE (→GE,EE) 

Crotchets in Ap
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The articulation of the accompanying two-note chords, extended in Ap in bars 9-10 and 13-15, seems to be a one-time exclusive idea or a certain transitional phase in the shaping process of the Etude's text.

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations , Accompaniment changes

b. 11-12

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

Semiquavers in CLI & FE (→GE,EE) 

Semiquavers & crotchets in Ap
..

In Ap the rhythmic values of the subsequent two-note chords in the lower voice of the R.H. constitute an alternating short-long (semiquaver-crotchet) scheme in these bars. Moreover, the contrast of the resounding's length is underlined with accents here and there. In the main text we give the homogeneous version of FE (→GE,EE), as far as the sound is concerned.

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations , Accompaniment changes

b. 12

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

..

category imprint: Corrections & alterations; Source & stylistic information

issues: Chopin's hesitations