mUltimate Chopin

Op. 28 No. 17, Prelude in A♭ major

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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. 22

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

..

In FCI there are no sharps before the middle note of the 2nd L.H. quaver (c1) and before the outer notes of the 3rd quaver (g and g1). In the final version Chopin corrected that patent inaccuracy.

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Omission of current key accidentals

b. 23

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

..

A natural before the bottom note of the 1st bottom R.H. voice quaver (e1) is present only in EE, the only one in which this patent inadvertence of Chopin was corrected. Similarly, the  before the bottom note of the 2nd L.H. quaver (b), overlooked in A (→FE,FC→GE), was supplemented only in EE. As far as FCI is concerned, it is difficult to decipher the accidentals here based on the photocopy available to us – it seems that out of 3 necessary accidentals, the top one was overlooked, raising a1 to a1.

category imprint: Interpretations within context; Differences between sources

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

b. 24-25

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

..

In the main text we omit the sharps before the outer notes of the chords on the 5th L.H. quaver, unnecessarily repeated in the final version in both bars, while in FCI in b. 24. 

category imprint: Differences between sources; Editorial revisions

issues: Cautionary accidentals

b. 25

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

d1 in chord in FCI

d1 in A (→FC→GE, →FE→EE)
..

The version of FCI featuring d1 (uncertain interpretation), hence perfect and not flatted fifth of the G7 chord, is naturally earlier and had already been abandoned by Chopin when A was being created (nothing points to an overlooked  – in the entire fragment, accidentals were inserted unusually meticulously; there are no oversights in this bar).

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes