Page:
Source:
p. 9, b. 141-153
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The 
signs, present in bars 151 and 153 in A (→GE), are the original version of notation of these ornaments. In analogous bars 155 and 157, Chopin already used mordents; what is more, in the proofreading of FE he changed to 
also in bar 151 (most probably he wanted to do it in bar 153 too, yet the engraver of FE must have deleted , but forgot to insert ). EE repeated after FE in bar 151 and added – by analogy – in bar 153.
category imprint: Interpretations within context; Differences between sources
issues: Errors in FE, Authentic corrections of FE,
notation: Ornaments
Missing markers on sources:
GE1, A, GE1a, Morch, GE2, FE1, FE2, FES, FED, FEJ, EE1, EE2, EE3