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Source:
p. 4, b. 76-103
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In A Chopin omitted a few necessary accidentals – the naturals to the top notes of the L.H. crotchet chords in bar 77 and 79 (a2) and the 
to the last quaver in bar 77 (c
4) and the naturals to the first and last quaver in bar 79 (a3 and e4). In GE (→EE,IE) 4 of them were added (except the 
to a2 in bar 79); the fully correct text is only in FE.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, GE revisions, Omission of current key accidentals, FE revisions, Inaccuracies in A
notation: Pitch
Missing markers on sources:
A, EE2, EE1, IE1, GE1, FE1