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b. 6

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

..

In all manuscripts, FE and EE1 (→EE2) have no flats returning e2 and e1. This inaccuracy, so characteristic for Chopin, was corrected only in GE and EE3.

category imprint: Interpretations within context; Differences between sources; Corrections & alterations

issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors of A

b. 6-7

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

'1' written into FED

Fingering in AW in bars 56-57

No teaching fingering

..

Cf. General Editorial Principlesp. 17.

category imprint: Differences between sources; Editorial revisions

issues: Annotations in teaching copies , Annotations in FED

b. 6-8

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

Slurs in AT

Divided slur in AW

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

..

In the version prepared for print, Chopin abandoned in this fragment any attempts to suggest any phrase divisions, both structural (AT) and expressive (AW). The written in AW phrase breath effect in the 2nd half of bar 7 (and 26) was used – in the form underlined with articulation – only on the occasion of the last appearance of this fragment (bar 57). 

category imprint: Differences between sources; Corrections & alterations

b. 6-8

composition: Op. 25 No 4, Etude in A minor

No signs in A (→FE)

  in FC & EE

  in GE

..

In the main text we give a pair of   hairpins added most probably by Chopin in FC and base text to EE. The shift of the  sign in GE was probably a result of division of the score into great staves – bar 7 falls at the end of the line.

category imprint: Differences between sources

issues: Authentic corrections of FC

b. 6

composition: Op. 26 No 2, Polonaise in E♭ minor

..

FE overlooked the  pedal release mark written in A. It was added in GE and EE.

category imprint: Differences between sources

issues: Inaccuracies in FE , No pedal release mark