A
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b. 19-21
In A there is a visible change of the inner note of the 5th chord in the R.H. – in bar 19 Chopin first wrote e2, which he then changed to f2, while in bar 21 he changed g2 to f2.
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category imprint: Corrections & alterations; Source & stylistic information
issues: Corrections in A
notation: Pitch