Issues : Cautionary accidentals

b. 52

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

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In A (→FC,FE) in this bar Chopin inserted cautionary accidentals only before the first notes in both hands – d and b2. In the main text we also add accidentals before the 2nd quaver and the 2nd beat of the bar. Some of them were already added in EE1 (flats before b-b1 on the 2nd quaver and before e) and in GE and EE2 (the same as in EE1 as well as a  before a1 and a  before f2). Moreover, GE and EE2 added a  before e2.
All the aforementioned accidentals in the bottom R.H. voice –  before a1 before f2 and  before e2 – as well as a  before e are also to be found in FCI.

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: EE revisions , GE revisions , Cautionary accidentals

b. 74

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

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In the main text we omit the totally unjustified  (cautionary?) before d1, which, however, is present in all sources.

category imprint: Editorial revisions

issues: Cautionary accidentals , Last key signature sign