in 
The absence of the sign in GE most probably means that it was originally absent also in FE, in which it was however added – perhaps by Chopin – in the last stage of proofreadings of FE. In the main text we give the sign written in A in these bars, slightly longer than in the previous appearances of this phrase.
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category imprint: Differences between sources
issues: Errors in FE, Scope of dynamic hairpins, Errors in GE, Authentic corrections of FE
notation: Articulation, Accents, Hairpins