When interpreted literally, the slur beginning in the half of bar 69 reaches the 2nd grace note in bar 70, which, however, cannot be musically explained, since the grace notes constitute the beginning of a trill. Therefore, we assume that it reaches further, to the trilled minim e
2. On the other hand, it seems to be possible that Chopin meant a slur embracing the 1st minim only, ending the roulade in the previous bar. In GE1 and in the remaining sources, the slur embraces only the 2nd half of bar 69, which almost certainly does not correspond to Chopin's intention – adjusting slurs (as well as dynamic hairpins) to the main rhythmic units (e.g. bars or groups embraced with a beam) is a characteristic, routine manner of the engravers of GE. The slur was also added in the part of the L.H., which in this situation is most probably an arbitrary change.
Compare the passage in the sources»
category imprint: Graphic ambiguousness; Differences between sources
issues: Inaccuracies in GE, Inaccurate slurs in A, GE revisions
notation: Slurs