The original version of the L.H. part in the 1st half of bar 19 was discarded by Chopin both in Ap and in the base text for FE (→GE,EE). We add cautionary naturals on the 2nd beat of the bar (also in bar 20); an identical addition was performed in later GE and EE4.
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category imprint: Differences between sources; Editorial revisions; Corrections & alterations
issues: EE revisions, GE revisions, Accompaniment changes
notation: Pitch