Issues : Errors of A

b. 8

composition: Op. 10 No 9, Etude in F minor

a in AI, GE & EE

in A (→FE)

..

The version of A (→FE) is almost certainly erroneous. It is revealed by the notation of AI in this bar and a compatible version of all sources in analogous bar 44. The correct text of GE and EE is most probably a result of revisers' actions, probably on the basis of comparison with bar 44.

category imprint: Differences between sources

issues: EE revisions , Terzverschreibung error , GE revisions , Errors of A

b. 8

composition: Op. 10 No 9, Etude in F minor

in A

in FE (→GE,EE)

..

A includes the indication rittenuto (sic!). In the main text we give ritard., which could be a result of Chopin's proofreading of FE (→GE,EE). In AI there are no indications in bars 8-9.

category imprint: Differences between sources

issues: Errors of A , Authentic corrections of FE

b. 8

composition: Op. 10 No 10, Etude in A♭ major

e2 in A (→FE) (literal reading)

e2 in GE & EE

..

A lacking  before the penultimate quaver is most probably a mistake by Chopin. The accidental was added by the revisers in both GE and EE.

category imprint: Differences between sources

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

b. 8

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

Rhythm in A & EE3, contextual interpretation

Rhythm in GE1 (→FEEE1EE2), contextual interpretation, & GE2

..

In the part of the R.H. it is only GE2 that does not contain a rhythmic error. The version, however, resulted from a revision and it certainly does not correspond to Chopin's intention. For the remaining sources (except for EE3), we adopt an interpretation compatible with the way the R.H. is planned with respect to the quavers in the L.H. As the text of EE3 we adopt the rhythm that, according to us, predominates at the time of interpreting the easiest perceptible elements of the rhythm: a crotchet, an extended crotchet and a group of semiquavers with a triplet inside.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , GE revisions , Rhythmic errors , Errors of A

b. 8

composition: Op. 28 No. 9, Prelude in E major

..

In A (→FC,FEEE1) and CGS there is no  lowering b to b. Chopin's mistake, obvious in this context, was corrected in GE and EE2. The fact that Chopin was convinced of the presence of b in the preceding part of the bar is evidenced by the naturals written in A before B1 and b on the 4th beat of the bar. 

category imprint: Interpretations within context; Differences between sources

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