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b. 1

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

..

According to us, the c2 quaver in AW may be a mistake, resulting from transition to two times bigger rhythmic values. The corresponding it rest in the part of the L.H. is illegible on the preserved photography of AW – for reasons of simplification, we assume it is a quaver rest.
The quaver and quaver rest in AT are a part of the original rhythmic notation of the Etude, discussed in the adjacent note.

category imprint: Differences between sources; Corrections & alterations

b. 1

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

c2 repeated in AT, AW, GC (→GE), FE & EE

c2 tied in CDP

..

The version of CDP may be a mistake – the copyist could have, e.g., misinterpret the extension of the phrase slur in [A]. However, it cannot be excluded that it is an authentic version, as the slur could have been included in  [A], where Chopin deleted it afterwards.  

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations

b. 1

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

Fingering in FES

No teaching fingering

..

In the printed version Chopin did not give the fingering. In the main text, we, however, include the abundant indications in this respect, given in AW and entered during lessons into FED and FES. The complementary fingering versions are discussed in one note, whereas these that can be considered independently are included in separate notes.

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES

b. 1

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

Fingering in FES

No teaching fingering

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FES

b. 1

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

..

In AT, AW and CDP, there is no cautionary flat before the 4th crotchet (b). It may mean that Chopin added the sign in [A], at the time of preparing the Etude for print, shortly before giving [A] for copying. 

category imprint: Differences between sources

issues: Cautionary accidentals