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b. 35-36

composition: Op. 10 No 4, Etude in C♯ minor

Three accents in AI

Seven long accents in FE (→EE)

Differentiated marks in GE1 (→GE1aGE2)

Longer  in GE3

Shorter  in GE4 (→GE5)

..

The accents, written in AI only in bar 35, most probably are to be considered as a model. It is confirmed by seven signs visible in FE (→GE,EE). The signs in FE (→EE), despite varied length and imprecise arrangement, are certainly long accents. In turn, it is not clear in GE, in which there is a visible tendency to extend the signs.

category imprint: Differences between sources

issues: Long accents

b. 35-36

composition: Op. 10 No 4, Etude in C♯ minor

..

In both these bars, on the 12th, 13th and 16th semiquavers, AI has a c (in different octaves) and not a d. The correction from d2 to c2 on the 13th semiquaver in bar 35 indicates Chopin's hesitation, as eventually – in FE (→GE,EE) – all these notes were written as d

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations , Enharmonic corrections

b. 35

composition: Op. 10 No 4, Etude in C♯ minor

No mark in AI & EE2

Wedge in FE

Two wedges in GE & EE3 (→EE4)

..

Lack of the wedge in EE2 is certainly a mistake. The wedge in the L.H. is most probably a revision of GE and EE3 (→EE4).

category imprint: Differences between sources

issues: Errors in EE , GE revisions

b. 37

composition: Op. 10 No 4, Etude in C♯ minor

..

In AI there is no cautionary  before e1. The sign was most probably added in a proofreading of FE (→GE,EE).

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE

b. 37

composition: Op. 10 No 4, Etude in C♯ minor

..

We add a cautionary  before d.

category imprint: Editorial revisions