A comparison with the next bars indicates that the slur over the pair of chords is of motivic nature. It is bar 293 that is particularly pronounced, since the motif of the middle voice, encompassed with a slur, is a variant of the two-note f2-e2 motif in the discussed bar. Therefore, most probably, in this bar the slur also applies above all to the middle voice, which Chopin perhaps marked inaccurately or which the engraver did not understand. Taking that into account, as well as to avoid the implication that b2 should be sustained, in the main text, we move the slur, so that it points to the f2-e2 motif. There is a similar situation in bar 307.
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category imprint: Editorial revisions
notation: Slurs