The change to the rhythmic value of a1, from crotchet to minim, could have been introduced by the reviser to fill the 1st half of the bar in the bottom-most voice. Due to the same reason, he should have also prolonged the c
2-f2 minims in the middle voice, hence the lack of such a change supports the Chopinesque origin of the a1 note having been prolonged. See also the note above.
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category imprint: Differences between sources
issues: Authentic corrections of FE, FE revisions
notation: Rhythm