In FE, there are no sharps before the second semiquaver, placed an octave lower than the first one, of the majority of the figures in the L.H. – marks are necessary in 10 out of 15 figures, whereas an appropriate 
is present only before c
1 in bar 418. All the remaining marks were added both in GE and EE.
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category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Errors in FE, Accidentals in different octaves, GE revisions
notation: Pitch