In A (→FE), there is no 
to the 6th quaver in b. 156 (f
2). Chopin's patent inaccuracy was corrected by GE and EE.
In the main text we add cautionary flats to e
1/2/3 in b. 156 and to the L.H. e1 in b. 157. Flats were added also by GE, and the one in b. 157 also by EE3.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, GE revisions, Inaccuracies in A, Errors repeated in FE
notation: Pitch