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b. 37-38

composition: Op. 10 No 11, Etude in E♭ major

c2 in A

b1 in FE (→GE,EE)

..

In both bars Chopin changed the bottom notes of the chords on the 3rd quaver in a proofreading of FE (→GE,EE). He introduced similar changes in many other places both in A and proofreading of FE—cf. bars 17-21.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 37-38

composition: Op. 10 No 11, Etude in E♭ major

..

In A there are no flats lowering d2-d3 to d2-d3 in bar 38. The mistake was corrected in GE and EE. In bar 37 in FE was overlooked before the lower note of the 4th chord, which was also corrected in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , GE revisions , Omission of current key accidentals , Errors of A

b. 39

composition: Op. 10 No 11, Etude in E♭ major

e1 in A (→FEGE,EE)

f1 proposed by the editors

..

In the main text we suggest f1 on the basis of Chopin's possible correction in analogous bar 7.

category imprint: Interpretations within context; Editorial revisions

issues: Omitted correction of an analogous place

b. 39

composition: Op. 10 No 11, Etude in E♭ major

..

We add cautionary flats before the 2nd chord.

category imprint: Editorial revisions

b. 40

composition: Op. 10 No 11, Etude in E♭ major

..

Before the last chord in A there are no naturals returning c2 and c3. The accidentals were probably added only in the last proofreading of FE (→EE), as they are not included in GE1 (they were added in subsequent GE,s).

category imprint: Interpretations within context; Differences between sources

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