GE
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The earlier division of the slur in the editions is certainly a result of distraction of the engraver of GE1, who, seeing a similarly shaped group of four notes, gave a third consecutive four-note slur. The slurs probably indicate here the following rhythmic grouping of this 18-note figure: 4-4-5-5.
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category imprint: Differences between sources
issues: Inaccuracies in GE
notation: Slurs