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b. 240

composition: Op. 21, Concerto in F minor, Mvt III

..

In A (→GE), there is an unjustified cautionary  before d1. The sign was omitted in FE (→EE).
In the main text we add cautionary naturals before f1 and f2.

category imprint: Differences between sources; Editorial revisions

issues: Cautionary accidentals , Last key signature sign

b. 240

composition: Op. 16, Rondo in E♭ major

in FE (→GE,EE)

suggested by the editors

..

The  mark present in FE (→GE,EE) is probably a mistake (cf. analogous bars 84, 88 and 236 where there is a ). Such erroneous swaps of those markings were quite frequent in first pieces published by Chopin in France (cf. the notes to the Etudes: in A Minor, Op. 10 No. 2, bar 12; ​​​​in E, No. 3, bar 54; in C Minor, No. 4, bars 1, 8, 16, 26, 54; in E Minor, No. 6, bars 21 and 32, in C Minor, No. 12, bar 37).

category imprint: Differences between sources; Editorial revisions

issues: Inaccuracies in FE , fz – f

b. 240

composition: Op. 16, Rondo in E♭ major

Long accent in FE (→GE), contextual interpretation

Short accent in EE

category imprint: Differences between sources; Editorial revisions

issues: Long accents , EE revisions

b. 240

composition: Op. 11, Concerto in E minor, Mvt III

Wedge in FE (→GE,EE)

Editors' suggestion – no mark

..

We consider the wedge to be a mistake – it seems that it should have been placed two bars earlier.

category imprint: Editorial revisions

b. 240

composition: Op. 31, Scherzo in B♭ minor

b1-g2-b2 in A (→FCGE1, →FEEE)

b1-f2-b2 in GE2 (→GE3)

..

The version of the majority of the sources, the 3rd chord with g2, does not raise doubts as such. However, they arise when compared with analogous b. 108, in which, after the corrections performed in A, Chopin eventually wrote a chord featuring f2. Actually, the corrections probably concerned the issue of rhythm; however, they guarantee that the b1-f2-b2 chord does not contain a mistake and was intended by Chopin. What is more, had the corrections been performed simultaneously with the revision of the entire manuscript, this version would have been the last one written by Chopin. Taking into account the above observations as well as the fact that it seems highly unlikely that such an insignificant difference could have been intentionally left behind, we consider the version with f2 an equivalent variant. This is the only version that was introduced in GE2 (→GE3).
There is a similar situation in b. 691.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions , Omitted correction of an analogous place