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d2 & d2 in sources |
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d |
The version of the sources, in which both the second and the last quaver feature d2 (without any accidental), is almost certainly due to Chopin's oversight, who, after writing a 
lowering d2 to d
2 at the end of the preceding bar, did not notice that he should have repeated it only just 2 quavers farther on. This assumption is confirmed by an analogous sequence in bar 68, which includes a respective . Taking into account the above, in the main text we add a in the discussed place, as well as a 
, necessary in this case, restoring d2 at the end of the bar.
Compare the passage in the sources»
category imprint: Editorial revisions
issues: Omissions to cancel alteration, Omission of current key accidentals, Errors of A
notation: Pitch