Issues : Errors repeated in EE

b. 19

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

..

The  before the top note of the last R.H. quaver appears only in FCI. This produces no error in A and the sources retaining the original arrange­ment of chords – FC and GE – for an appropriate  appears on the upper staff before the 2nd L.H. quaver. However, in FE (→EE) which printed the entire L.H. part on the lower staff (as in our transcriptions), the accidental should have been added, but was not.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Errors repeated in EE

b. 22

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

..

In FE (→EE1) there is an erroneous  before the bottom note of the sixth (e1). The mistake was corrected in all teaching copies bearing traces of being developed with Chopin. A corresponding correction was also entered into EE2.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , Annotations in FED , Annotations in FES , Annotations in FEJ , Errors repeated in EE

b. 44-46

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

..

In A (→FC,FE) accidentals were inserted very inaccurately – in total, 4 sharps and 12 naturals are missing – which, however, does not impede the determination of the correct text. Accidentals were being added in GE and EE, although it is only in EE2 that the notation is totally correct. The naturals before the b-b1 octave in b. 44 were also added in FED.
Interestingly enough, the notation of FCI is more accurate than the one of A – only one  and 5 naturals are missing.

category imprint: Interpretations within context; Differences between sources

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