In b. 572-573, 574-575 and 578-579 the separate L.H. slurs are an arbitrary addition of the engravers (revisers) of GE and EE. In such a layout, when the parts of both hands are written on the bottom stave, slurs over notes refer to both parts, so there is no need to double them. The five-note slurs in GE2 (→GE3) stem from the R.H. slurs (over notes), which were changed in the same way.
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category imprint: Differences between sources
issues: EE revisions, GE revisions
notation: Pitch