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Fingering

b. 4-5

composition: Op. 28 No. 4, Prelude in E minor

Fingering written into FES

No teaching fingering

..

The addition performed in pencil in FES, hardly legible, especially in b. 4, most probably represents two digits (3) marking the fingering and written on the side.

category imprint: Graphic ambiguousness; Differences between sources

issues: Annotations in teaching copies , Annotations in FES

b. 12

composition: Op. 28 No. 4, Prelude in E minor

Fingering written into FED, FEJ & FES

No teaching fingering

..

In three out of four teaching copies, we find identical Chopinesque entries, indicating a swap of fingers on the c1 note (from 1st to 2nd). The entry in FED is clearest, whereas the one in FEJ – most difficult to read.

category imprint: Graphic ambiguousness; Differences between sources

issues: Annotations in teaching copies , Annotations in FED , Annotations in FES , Annotations in FEJ

b. 12

composition: Op. 28 No. 4, Prelude in E minor

Fingering written into FES

No teaching fingering

..

The poorly legible addition in FES, performed in pencil, most probably marks fingering – it contains two marks, out of which the first is almost certainly a digit '3', which makes us suppose that the second will be a digit too, which we thereby interpret as a '5'. According to us, a similarly placed entry in FEJ, however, does not mark fingering, but a variant in the form of an f1 grace note. 

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES