Moving the semiquavers in bars 77-78 and 81-82 beyond the 3rd quaver of the respective L.H. triplet is an arbitrary change by the revisers of GE and EE (in bar 77 GE mistakenly placed the semiquaver before the 3rd L.H. quaver). It suggests that the semiquavers should be performed after the respective accompaniment note, which is certainly contrary to Chopin's intention, clearly stated in the A notation. Cf. bars 245-249, see also the Nocturne in C minor, Op. 27 No. 1.
Similarly, in analogous bars 164-169 and 244-249.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, GE revisions, Dotted rhythms and triplets
notation: Rhythm