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Source:
p. 7, b. 92-103
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2 in chord in 
The version of GE1 (→GE2) is most probably erroneous – even if we assumed that Chopin took part in the preparations of GE1, the use of b1 in this context would have required a cautionary 
. In GE3, it was considered a mistake.
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category imprint: Differences between sources
issues: Errors in GE, GE revisions
notation: Pitch
Missing markers on sources:
FE1, FES, FED, FEJ, FEH, GE1, GE2, GE3, EE3, EE1, EE2, FEFo, GE2a