In both bars there are no accidentals both before the 12th and the 13th semiquavers in A. The flats added in the proofreading of GE (→FE→EE) – almost certainly by Chopin – confirm that we are dealing here with a rare case of a fourfold composer's error, who overlooked both the naturals altering d
2 to d2 and flats returning d2. Both necessary naturals were added in EE and the first of them (in bar 109) also in GE2. This kind of mistake may seem implausible, yet in the notation of A, in which the 2nd and 3rd groups of semiquavers are written an octave lower with the use of the octave sign, the error does not seem so striking:
- the discussed notes are not next to each other, hence a juxtaposition of two identical notes, which do not have accidentals, yet they sound differently, is absent;
- naturals before d2 seem to be obvious after naturals in both hands in the 1st half of each bar;
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d2 are sounds of the fixed, current key, F minor, hence the absence of flats is a typical Chopin oversight of cancelling alterations.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, Inaccuracies in GE, Omissions to cancel alteration, GE revisions, Errors of A, Authentic corrections of GE
notation: Pitch