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Source:
p. 12, b. 485-528
Main text
Prezentacja
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It is hard to determine whether lack of 
in FE was Chopin's conscious alteration to the system of dynamic markings or just one of the inaccuracies of the notation. The latter seems more probable, however in the main text we propose our variant leaving the choice to the performer.
See b. 518-520
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category imprint: Differences between sources
issues:
notation: Verbal indications