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b. 1-2

composition: Op. 35, Sonata in B♭ minor, Mvt IV

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The second halves of the bars are written in Afin in an abbreviated manner as repetition of the first ones.

category imprint: Source & stylistic information

issues: Abbreviated notation of A

b. 9-12

composition: Op. 35, Sonata in B♭ minor, Mvt IV

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From the middle of bar 9, in Afin only the part of the R.H. is written out. On the bottom stave, Chopin wrote unisono as indication of continuation of the L.H. parallelly with the R.H. The autograph ends together with bar 12.

category imprint: Differences between sources; Source & stylistic information

issues: Abbreviated notation of A , Incomplete sources

b. 19-38

composition: Op. 35, Sonata in B♭ minor, Mvt IV

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Afin ends in bar 12. As a consequence, in the further notes on this page, we do not take this source into consideration.

category imprint: Source & stylistic information

b. 39-56

composition: Op. 35, Sonata in B♭ minor, Mvt IV

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Afin ends in bar 12. As a consequence, in the further notes on this page, we do not take this source into consideration.

category imprint: Source & stylistic information

b. 39-46

composition: Op. 35, Sonata in B♭ minor, Mvt IV

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The return of the initial fragment of the piece is marked in GC in an abbreviated manner with empty bars, numerated from 1 to 10, which undoubtedly corresponds to the notation of [A]. Repetition of 10 bars is either the original version or – which, according to us, is more likely – Chopin's mistake.

category imprint: Source & stylistic information

issues: Abbreviated notation of A