The roulade ending this bar has two basic versions in the sources:
-
an eight-note one in A (→GE), in which f2 appears directly after d
2; -
a nine-note one in FE (→EE), in which between d2 and f2 there is also g2.
The second was undoubtedly introduced on Chopin's request, however, its notation raises certain doubts – the g2 note added in the proofreading is preceded with a 
(cautionary?), being totally unjustified in this context (e.g. both in analogous bars 13 and 32 and in the discussed bar the top most note of this figure, g3, is written without a ). Therefore, one could wonder whether a Terzverschreibung error could have been committed here and whether the intended note could have been an e2, which naturally develops the melodic line of this figure after the e1 semiquaver. We suggest this possibility as an alternative interpretation of the Chopin proofreading of FE.
Differences in the notation of the rhythm of the figure's ending – see the last note in this bar – cause that two slightly differing rhythmic schemes can be ascribed to each of the versions of the roulade discussed above.
Compare the passage in the sources »
category imprint: Differences between sources; Editorial revisions; Corrections & alterations
issues: Terzverschreibung error, Cautionary accidentals, Authentic corrections of FE
notation: Pitch