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b. 8

composition: Op. 25 No 1, Etude in A♭ major

a in AI

d1 in A (→CDP,GE), FE & EE

..

In A and the remaining sources, the a note, present in AI as the highest note of the 1st figure in the L.H., was replaced by d1. Only in FE the note is not provided with a cautionary flat.

category imprint: Differences between sources; Corrections & alterations

issues: Cautionary accidentals , Accompaniment changes

b. 8

composition: Op. 25 No 1, Etude in A♭ major

e in CDP

d in AI, A (→GE), FE & EE

..

The version of CDP results in a pianistically uncomfortable cluster of three e notes, played alternately by the right and left hand. Therefore, it is most probably a mistake – the copyist did not notice the difference between the third and fourth figure in this bar and marked the latter as repetition of the previous one. He committed a similar and undeniable, yet more serious, mistake also at the very beginning of the Etude

category imprint: Differences between sources

b. 8

composition: Op. 25 No 2, Etude in F minor

'2 1' written into FED

'4 3' written into FES

Our suggestion

No teaching fingering

category imprint: Differences between sources

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

b. 8

composition: Op. 25 No 2, Etude in F minor

a2 in AT, AW, CDP, GC (→GE), FE & EE2 (→EE3)

b2 in EE1

..

The version of EE1 is almost certainly erroneous.

category imprint: Differences between sources

issues: EE revisions , Errors in EE

b. 8

composition: Op. 25 No 2, Etude in F minor

ain AT

f1 in AW, CDP, GC (→GE), FE & EE

..

The broader position of the L.H. written in AT was changed later by Chopin.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes