Chopin changed the hairpins' concept in A: he deleted the crescendo hairpins in bar 9 and he prolonged the ones beginning in bar 8. Probably both changes were introduced at the same time: Chopin deleted the short hairpins in bar 9, planning to introduce a longer crescendo indication. In order to do that, he added an extension of the hairpins' arm from bar 8 or even the entire hairpins in two moves (the too short sign and extension).
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category imprint: Graphic ambiguousness; Corrections & alterations
issues: Scope of dynamic hairpins, Deletions in A
notation: Articulation, Accents, Hairpins