A
compare
The range of the slur over the L.H. crotchets, present only in A, is unclear: its beginning falls on between the 1st and 2nd octave in b. 539. According to us, it is much more likely that the slur starts from the beginning of the bar, which is indicated by the shape of the slur.
Compare the passage in the sources »
See b. 538-540
category imprint: Graphic ambiguousness
issues: Inaccurate slurs in A
notation: Slurs