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b. 34

composition: Op. 10 No 3, Etude in E major

g1 in AI & A (→FE1GE,EE)

g1 in FE2

..

The main text (g1) comes from the sources of unquestioned authenticity – both autographs and FE1, corrected a few times by Chopin. The authenticity of the version with g1 is also highly likely, as Chopin wrote it initially in AI. However, it is not entirely clear whether the change introduced in FE2 was not a result of a misunderstanding at the time of proofreading.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 36

composition: Op. 10 No 3, Etude in E major

A in AI

Octave in A (→FEGE,EE)

..

The single in AI is either the original version or only a simplified notation (in bar 32 AI has an octave).

category imprint: Differences between sources; Corrections & alterations

b. 36

composition: Op. 10 No 3, Etude in E major

..

The cautionary  before and a  before d2 are in AI, yet they were not included in A. Naturals before both notes of the octave were added in a proofreading of FE (→EE), most probably in the last phase, as they are absent in GE1. In subsequent GE, the signs were added together with cautionary sharps before d1-d2 in the R.H. The last addition is also present in EE4

The natural before a1 in the R.H. was added by us. 

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions , Cautionary accidentals , Authentic corrections of FE

b. 38-40

composition: Op. 10 No 3, Etude in E major

..

The sources lack in some necessary cautionary accidentals – the fully correct text is only in GE4 (→GE5). If we take into consideration the logic of the figuration's structure, all these situations may be considered as obvious oversights, in spite of the fact that in a few cases the harmonic relations would allow to consider the created chords as possible. 

category imprint: Interpretations within context; Differences between sources

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

b. 38-40

composition: Op. 10 No 3, Etude in E major

..

In order to facilitate the interpretation of chromatic progressions, we add a number of cautionary and reminding signs. Only a part of them are in the sources; it also happens that the sources have different signs of this type, which are, according to us, superfluous.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions , Cautionary accidentals