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b. 19-22

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

No slurs in AI

Slurs in FE (→GE,EE)

..

In AI Chopin would write slurs only from time to time, which resulted from the working nature of this autograph. In the discussed section, the only slur is in bar 21 (discussed separately).

category imprint: Differences between sources

b. 20-22

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

Long accents in AI

 in FE (→GE,EE2)

 suggested by the editors

..

At the end of bars 20 and 22, in the main text we suggest to combine the  mark of the editions with the accents of AI, as Chopin marked it in analogous situations in bars 16 and 18. The version was introduced in EE3 (→EE4), probably on the basis of comparison with these bars.

category imprint: Differences between sources; Editorial revisions

issues: Long accents , EE revisions

b. 20

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

Fingering written into FES

No fingering in FE (→GE)

Fingering numeral in EE

..

In the main text we give the fingering written in FES, probably coming from Chopin. The first of these numerals is to be found also in EE (cf. bars 19-20).

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FES

b. 21-26

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

..

It is hard to determine whether it was Chopin that introduced the change of key marking – in [A] or proofreading FE – or it was a result of the engraver's error. The error is justified with flats before g in bar 24 and g1 in bar 25, apparently added in FE just in print. The notation with five flats is more justified from the point of view of the harmonic flow – the key that dominates from bar 22 to the beginning of bar 25 is B minor. In spite of this, in the main text we give the notation of FE (→GE,EE), as Chopin did not take the opportunity to correct it in a proofreading of FE. Cf. the Etude in A major, No. 10, bars 29-31.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 21-22

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

No fingering in AI & FE (→GE)

Fingering numeral in FED

Fingering in EE

..

In the main text we consider the 1st finger written in FED. The fingering, added by Fontana in EE, starts with a different numeral. Fontana suggested variant solutions for six notes in bar 19. 

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FED