Finding out which of the two source versions is later does not seem to be possible due to the doubts concerning their authenticity. The triad in GC is written with the copyist's hand, therefore, the version was probably in [A]. A possible copyist's error seems to be highly unlikely here, unless the autograph included a kind of deletions (another possibility is the erroneous introduction of the chord on the 4th quaver in the bar). In turn, the omission of the middle note of the chord, written on the ledger line, is quite a frequent mistake, as in Chopin's autographs, the note heads have a tendency to merge with both the chord's stem and ledger line (cf., e.g., the Etude in G major, Op. 10 No. 5, bar 15). However, if we are to exclude possible mistakes, the version considered to be later should have been the one with the sixth. Therefore, in the main text, we suggest a variant solution.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in FE, EE inaccuracies
notation: Pitch