1 together with c
In bar 167 and 169, moving the last bottom voice quaver between the 2nd and 3rd notes of the top voice triplet was an arbitrary decision by the engravers of GE and FE. In EE the Chopinesque notation was probably introduced on the basis of the majority of the previous similar situations (bar 78 and 82 and 165).
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category imprint: Differences between sources
issues: EE revisions, GE revisions, FE revisions
notation: Rhythm