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b. 20

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

..

In AT the last triplet in the part of the L.H. is at the same time the first figure of this type provided with a slur (not counting the four-note passage in bars 18-19). However, it is not clear from which note it is to be valid according to Chopin, whether from e or g1; according to us, the first possibility is more plausible. Moreover, the slur clearly leads beyond this triplet, as it would be difficult to indicate an unambiguous interpretation of such notation, which, in addition, may be devoid of any serious meaning.

category imprint: Differences between sources

b. 23

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

..

In AW there is no  returning b2.

category imprint: Interpretations within context; Differences between sources

b. 23

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

Divided slur in AW

Continuous slur in CDP, GC (→GE), FE & EE

category imprint: Differences between sources; Corrections & alterations

b. 24

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

No markings in AW & CDP

Pedalling in GC (→GE)

Pedalling in FE

Pedalling in EE

..

The visible in GC deletions prove that the arrangement of the  sign both in FE and EE was considered to be inaccurate by Chopin. Similarly in bar 26.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections in GC

b. 25

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

..

In GC (→GE1), FE and EE1 there is no  returning b1. This characteristic for Chopin error was corrected in later sources; AW and CDP also have the correct text.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , Omissions to cancel alteration , GE revisions , Errors of GC