Page:
Source:
p. 9, b. 68-76
PE - First Polish Edition
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b. 74
PE lacks the lowering a3 into a3 in the 2nd group of demisemiquavers. The engraver's error (or maybe an error of Chopin himself) is indicated by a in all remaining sources and the use of a notes in adjacent bars.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Errors in PE
notation: Pitch