b. 18
FE1 does not have a single accidental in this entire bar, which means that the diminished chord d-f-a is the harmonic basis. This is how it was understood in FE2, adding a cautionary before the 1st quaver of the L.H. Chopin's corrections in FEJ and the error-free version of GE show that Chopin's intention here was to have a D major chord as the harmonic basis. The reviser of EE added the relevant naturals here too. Cf. a further note for this bar.
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category imprint: Differences between sources
issues: Annotations in teaching copies, EE revisions, Errors in FE, Annotations in FEJ, FE revisions
notation: Pitch