GE1
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The traces visible in FE prove that the last semiquaver was proofread, since d
1 was changed to c1. That version was probably an earlier edition of that place or perhaps also of earlier analogous bars 412, 413 and 436, changed still at the stage of manuscripts. In that case, it would be an overlooked proofreading of an analogous place.
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category imprint: Corrections & alterations; Source & stylistic information
issues: Authentic corrections of FE
notation: Pitch