In FE (→GE1→GE2), the only cautionary accidental in these bars is a 
before b, the last quaver in bar 377. In EE, GE3 and FEH, a 
was added before d
1, and we also add a before c1 in the main text.
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category imprint: Differences between sources; Editorial revisions
issues: Annotations in teaching copies, EE revisions, GE revisions, Cautionary accidentals, Annotations in FEH
notation: Pitch