Page:
Source:
p. 7, b. 195-210
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Prezentacja
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In FE, a 
is only before the top note of the octave on the 2nd beat of the bar. The patent mistake was corrected in the remaining editions by adding a before the bottom note, whereas in EE and GE3, the unnecessary before the top note was also removed.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, Inaccuracies in FE, GE revisions
notation: Pitch
Missing markers on sources:
GE1, GE2, FE1, FED, FEH, FEJ, FES, GE3, EE1, EE2, EE3, Atut, GE2a, FEFo