In the main text we omit the cautionary 
before f
in b. 78, present in all sources, and add a 
before c1. We also add a natural in analogous b. 90. Additions in b. 90 were also performed in EE, by adding a , and in GE3, by adding a .
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category imprint: Differences between sources; Editorial revisions
issues: EE revisions, GE revisions, Cautionary accidentals, Last key signature sign
notation: Pitch