A
compare
b. 63
The lack of the natural raising a2 to a2 in the ending of the 1st trill in A (→GE1), FE and EE is probably Chopin's oversight. The sign was added in GE2 (→GE3→GE4).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: GE revisions
notation: Pitch