According to us, the accent was added here – probably by Chopin – due to the absence of the slurs, overlooked in FE (see the note below). In the main text we do not include this mark, since we add the slurs, and it is impossible to decide whether Chopin, upon seeing them, would have added an accent.
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category imprint: Differences between sources
issues: Annotations in teaching copies, Annotations in FED
notation: Articulation, Accents, Hairpins