in 
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The differences in the notation of the f
1 crotchet at the beginning of the 2nd half of the bar is probably a result of a mistake of the engraver of FE and revisions of the remaining editors. The dotted crotchet in the versions of FE and GE – regardless of the notation manner – implies a momentaneous split of the most bottom of the three upper voices, which, until that moment, was consistently led from the beginning of that phrase in bar 52. Due to this reason, we consider the crotchet in EE to be the most probably correct, where the natural sequence of the three upper voices, corresponding to Violin I, Violin II and Viola, is maintained.
Compare the passage in the sources»
category imprint: Differences between sources
issues: EE revisions, Errors in FE, GE revisions
notation: Rhythm