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b. 13

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

No markings in AT, AW & CDP

Pedalling in GC (→GE), FE & EE

..

There is no pedalling in the previous sources.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections in GC

b. 14

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

 in AW

No sign in CDP, GC (→GE) & EE1 (→EE2)

 in FE

 in EE3

..

The  hairpins (and corresponding  in bar 15) were probably added by Chopin in a proofreading of FE. The sign in EE3, despite being generally compatible with authentic indications of AW and FE, is undoubtedly an addition of revision.

category imprint: Differences between sources

issues: EE revisions , Authentic corrections of FE

b. 15

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

No unauthentic fingering

Fingering added in EE2 (→EE3)

..

In the main text we do not include the non-authentic fingering added in EE2 (→EE3).

category imprint: Differences between sources

issues: EE revisions

b. 15-20

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

..

In AT the Etude is written in 2/4 time signature, in two times smaller values – semiquaver triplets in the R.H. and quaver triplets in the L.H.

category imprint: Differences between sources

b. 16

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

Fingering in AW

Fingering written into FED

No handwritten fingering 

..

In the main text we give Chopin fingering drawn from AW, confirmed with an entry in FED.

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FED