In A, starting the slur from bar 17 is most probably an inaccuracy, being a result of the transition to a new page. It was corrected in GE (→FE→EE); the traces of correction in print are clearly visible. At the same time, one can see that the slur in GE1 originally encompassed bars 17-19, which was changed to a slurring that was not only compliant with A, but also correcting the inaccuracy of the manuscript. In this case, the authenticity of this correction is unquestionable.
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category imprint: Differences between sources; Corrections & alterations
issues: Authentic corrections of GE, Corrected slurs of Op. 21 in GE1
notation: Slurs