A comparison with analogous bar 73 suggests that the version of FC (→GE) is erroneous. It is likely that Fontana did not notice both c1 notes in the chords due to inaccurate notation – in Chopin's autographs, it can sometimes be difficult to determine the presence of notes on ledger lines in the middle of chords. A correction to FC (in print or of the basis) cannot be ruled out either.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Authentic corrections of FE, Errors of FC
notation: Pitch