Chopin added the 
hairpins in FC, as was the case with the majority of the remaining dynamic marks in this Mazurka. GE partially adjusted the range of the marks to full bars, which in this case was justified to a certain extent, due to the transition to a new page starting from bar 29.
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category imprint: Differences between sources; Corrections & alterations
issues: Scope of dynamic hairpins, GE revisions, Authentic corrections of FC
notation: Articulation, Accents, Hairpins