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b. 42

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

..

In the sources there is no  returning fat the penultimate semiquaver. Due to the unquestioned f1 in the R.H., lack of this sign must be considered as a patent error.

category imprint: Interpretations within context; Editorial revisions

issues: Omissions to cancel alteration

b. 43-44

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

No fingering in AI

Fingering in FE (→GE1)

GE2 (→GE3GE4GE5)

..

The fingering given in the main text in bar 43 is present in FE (→GE1,EE). In EE Fontana completed it in this and the next bar. In GE2 the numeral '4' in the L.H. was overlooked; the mistake remained uncorrected also in subsequent GE,s.

category imprint: Differences between sources

b. 45-46

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

No fingering in AI & FE (→GE)

Fingering digit written into FES

Fingering in EE

..

In the main text we give the fingering numeral written in FES. In the fingering added by Fontana in EE, a different finger was indicated here.

category imprint: Differences between sources

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

b. 45

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

b in AI

No b in FE (→GE,EE)

..

Renouncement of the b semiquaver in the final version finalises the changes whose trace is visible in the deletions of AI:

  • originally, the passage in the R.H. started with an a1, while the remaining elements of the ninth chord were in the part of the L.H.; 
  • starting the passage with bcaused a doubled third of the dominant chord, which Chopin did not like and which he eventually avoided by deleting b.

The four bottom notes of the chord of AI are written as semibreves.

category imprint: Differences between sources; Corrections & alterations

b. 45

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

..

In AI the chord in the L.H. is written with semibreves (apart from the acrotchet in the upper voice).

category imprint: Differences between sources; Corrections & alterations