Page:
Source:
p. 1, b. 1-18
Main text
Prezentacja
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In A 
marks in bars 10 and 12 are written only on the 4th beat in the bar, on 
marks. According to us, the way of their arrangement is a result of the already disappearing in Chopin's times convention of writing marks inside their scope of validity (and not at the beginning). This is how it was understood in FE (→GE,EE), in which the indications were moved before the octave motifs. This phenomenon also appears in bars 50-53 and 60-63, to an even greater extent.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Centrally placed marks
notation: Verbal indications
Missing markers on sources:
FE1, FE2, FED, FEJ, FES, A, GE1, GE2, GE3, GE4, EE3, EE4