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Source:
p. 9, b. 114-126
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In FE, the only accidental in this bar is a 
before the 1st semiquaver, c1. This simplified notation, characteristic of young Chopin, was completed in the remaining editions, whereas a before c4 was added only in EE and GE3.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Errors in FE, Accidentals in different octaves, GE revisions
notation: Pitch
Missing markers on sources:
FE1, FES, FED, FEJ, FEH, GE1, GE2, GE3, EE3, EE1, EE2, FEFo, GE2a