Issues : Differences in form

b. 19-20

composition: Op. 24 No. 4, Mazurka in B♭ minor

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A has got two more bars written in between bar 19 and bar 20. Those two additional bars, later deleted, contained modified versions of bars 20 and 5. They formed the 1st volta for the ending of the initially planned repeat of the section beginning in bar 6.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Differences in form