GE1
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Change of the indication is probably a result of Chopin's proofreading, who either ordered to change the indication or added a different one in place of the one overlooked by the engraver (it can be indicated by the missing e dim.). The possibility of a wrong interpretation of A by the engraver seems to be much less likely.
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category imprint: Differences between sources
issues: Authentic corrections of FE
notation: Verbal indications