A
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b. 51
In the proofreading of FE1 Chopin changed e1 in the 1st quaver in the L.H. into d1. The fact of leaving e1 in analogous bar 83 is to be considered Chopin's oversight or the engraver's mistake.
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See b. 50
category imprint: Differences between sources; Corrections & alterations
issues: Authentic corrections of FE
notation: Pitch