Issues : EE revisions

b. 26

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

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On the last quaver in A (→FCGE1) there are no accidentals before the middle notes of the chords in both hands – a  before b1 and a  before d2. The patent inaccuracies were corrected in FE (only the ) and EE (both). In turn, in GE2 (→GE3) naturals were wrongly added before both notes.
(NB: both correct accidentals are present in FCI.) 

category imprint: Interpretations within context; Differences between sources

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

b. 26

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

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EE1 omitted a  raising a1 to a1 on the 2nd quaver and f2 to f2 on the 6th quaver. The deficiencies were corrected in EE2.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in EE

b. 26

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

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There is no  raising e1 to e1 in A (→FC,FE). The obvious inaccuracy was corrected in GE and EE.

category imprint: Interpretations within context; Differences between sources

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

b. 33

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

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In A (→FE) there are only 3 flats before the 1st chord – e2c2 in the R.H. and a1 in the L.H. In FC and EE1 lowering c1 to c1 and a cautionary one before a were added, while in GE and EE2 a cautionary  before e1 was also added.
The necessary  lowering c1 to c1 was added in FED.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , Annotations in FED , Accidentals in different octaves , Cautionary accidentals , Fontana's revisions , Inaccuracies in A , Errors repeated in FE

b. 38

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

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In A (→FE) the top R.H. voice crotchets are devoid of dots. It must be Chopin's oversight – cf. analogous b. 6 and 14. Dots are in FCI as well as in FC (→GE) and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors of A , Fontana's revisions , Errors repeated in FE