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The quavers in AI are marked with portato dots (under a slur). Lack of dots in A (→GE→FE→EE) means probably a change to the articulation of the bar, possibly in conjunction with the vivid separation of the closing motif in bar 12. However, it cannot be ruled out that Chopin used a slur to just single out a melodic unity and left articulation nuances at the discretion of the performer.
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category imprint: Differences between sources; Corrections & alterations
notation: Articulation, Accents, Hairpins