GE
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Only GE has stretto in bars 67-68. It is difficult to decide whether it was removed from FE as intended by Chopin during proofreading or omitted by the engraver. For that reason the main text leaves the possible application of stretto up to the performer.
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category imprint: Interpretations within context; Differences between sources
issues: Errors in FE, Authentic corrections of FE
notation: Verbal indications