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In FE, there is no 
raising a2 to a
2 on the 4th beat of bars 88 and 90. The marks were added both in GE and EE.
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category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, Inaccuracies in FE, Omission of current key accidentals, Last key signature sign
notation: Pitch