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p. 22, b. 294-304
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b. 301
The cautionary natural specifying the sound of the 2nd semiquaver was added in the stage of proofreading FE1 (→FE2), probably at Chopin's request. It is worth noting that it was only in the editions that a clear need for this accidental manifested itself, in which the last semiquaver in the previous bar is provided with a flat – in A there is no accidental to any of these notes.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Cautionary accidentals, Authentic corrections of FE
notation: Pitch
Missing markers on sources:
AsI, A, GE1, GE2, GE3, FESB, FE2, EE1, EE2, EE3, FE1