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b. 4

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

..

The visible in AI corrections reveal Chopin's original concept of the figuration in the part of the R.H.: 

category imprint: Corrections & alterations

b. 4

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

No marking in AI

in FE (→GE,EE)

category imprint: Differences between sources

b. 4

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

 in AI

No sign in FE (→GE,EE)

..

The hairpin in AI is an original marking, substituted by cresc. in bar 1 in the version intended for publication.

category imprint: Differences between sources

b. 7

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

4 slurs in AI

No slurs in FE (→GE,EE2)

Slur in EE3 (→EE4)

..

The missing slurs in FE (→GE,EE2) must be considered as inaccuracy here, hence in the main text we give the slurs of AI, in accordance with the slurring of the editions in bar 3. In EE3 (→EE4), the bar was embraced with one slur after analogous bar 57.

category imprint: Differences between sources

issues: EE revisions

b. 7

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

in AI

No marking in FE (→GE,EE)

..

 in AI was almost certainly intentionally overlooked in the printed version.

category imprint: Differences between sources; Corrections & alterations