Issues : Errors repeated in GE

b. 21

composition: Op. 28 No. 19, Prelude in E♭ major

..

In A (→FC,FE) there are no accidentals in the 2nd L.H. triplet. Out of the two necessary flats, in GE and EE only one was added, the one lowering g to g.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , GE revisions , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 21

composition: Op. 28 No. 17, Prelude in A♭ major

..

In FC (→GE) the first c2 note is a dotted crotchet. The mistake was probably provoked by the complicated layout of this bar, in which the d1-f1 third of the 2nd L.H. quaver is written on the top stave next to the c1-g1 fifth of the bottom R.H. voice, thus creating an illusion of a third quaver filling c2 of the top R.H. voice.

category imprint: Interpretations within context; Differences between sources

issues: Errors of FC , Errors repeated in GE

b. 21

composition: Op. 28 No. 17, Prelude in A♭ major

..

In FCI and A (→FE,FCGE1) there is no  raising g to g in the 1st L.H. chord. The patent inaccuracy was corrected in EE and GE2 (→GE3).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE

b. 22

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

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None of the editions added the naturals returning f3 and f that Chopin overlooked in A.

category imprint: Interpretations within context; Editorial revisions

issues: Accidentals in different octaves , Errors in GE , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 23

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

..

In the sources there is no  returning a2, which is a patent inaccuracy.

category imprint: Editorial revisions

issues: Accidentals in different octaves , Errors in GE , Inaccuracies in A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE