GE1
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b. 17
In A (→GE1) there is no cautionary before f1. The sign was supplemented in FE (→EE) and GE2 (→GE3). The addition in FE is probably part of Chopin's proofing of that edition.
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category imprint: Differences between sources; Corrections & alterations
issues: GE revisions, Cautionary accidentals, Authentic corrections of FE
notation: Pitch