Issues : Omission of current key accidentals

b. 493

composition: Op. 31, Scherzo in B♭ minor

..

In A (→FCGE1, →FEEE1) there is no accidental before the last crotchet in the R.H. It must be a mistake, cf., e.g. analogous b. 497. Oversight of an accidental necessary for writing a note belonging to a currently valid key is one of Chopin's most frequent mistakes. A natural was added only just in GE2 (→GE3) and EE2 (→EE3); it was also added in FESf

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , GE revisions , Omission of current key accidentals , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE , Annotations in FESf

b. 494

composition: Op. 31, Scherzo in B♭ minor

..

In A (→FE,FCGE1) there is no  lowering g2 to g2 and no  lowering e2 to e2.  A flat was added already in EE1, whereas it is only just EE2 (→EE3) and GE2 (→GE3) that include the correct text.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , GE revisions , Omission of current key accidentals , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 499-500

composition: Op. 31, Scherzo in B♭ minor

..

Chopin overlooked in A (→FC,FE) two indispensable naturals: lowering g2 to g2 in b. 499 and c2 to c2 in b. 500. The former was added in GE1, the latter – in EE. It is only GE2 (→GE3) that contains the correct text.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Omission of current key accidentals , Inaccuracies in A , Errors repeated in FE

b. 541-543

composition: Op. 31, Scherzo in B♭ minor

..

In A (→FC) there are no naturals before the crotchets ending the five-note groups (a2, a1 and a). Through a proof copy of FE, this mistake also found its way to EE1 (in FE the accidentals were added in the last phase of proofreading). The naturals are also present in GE and EE2 (→EE3).

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Omission of current key accidentals , Authentic corrections of FE , Inaccuracies in FC , Inaccuracies in A , Errors repeated in FE , Errors repeated in EE

b. 657

composition: Op. 31, Scherzo in B♭ minor

 without  in A (→FEEE) & GE2 (→GE3)

with [] suggested by the editors

No  in FC (→GE1)

..

The missing  in FC (→GE1) is most probably an oversight of the copyist (in b. 206, of which the discussed bar is an exact repetition, added in GE2 (→GE3).
The missing  over the mordent must be an inaccuracy of Chopin: see b. 74.

category imprint: Interpretations within context; Editorial revisions

issues: GE revisions , Omission of current key accidentals