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WN 17, Polonaise in B♭ major

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b. 71

composition: WN 17, Polonaise in B♭ major

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JC has additional flats before e2 in the 4th and 5th groups of demisemiquavers.

category imprint: Source & stylistic information

issues: Last key signature sign

b. 71

composition: WN 17, Polonaise in B♭ major

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In EF first three groups of demisemiquavers are written with an octave sign. In JC the notes are written in the same way, yet the octave sign was omitted, which is a patent error. In this graphic layout the f2 note at the beginning of the 4th group requires the  sign to be repeated, which actually is featured both in JC and EF. 

category imprint: Differences between sources; Source & stylistic information

issues: Errors of JC

b. 71

composition: WN 17, Polonaise in B♭ major

c in JC

d in EF & PE
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The c note in JC is most probably the copyist's error, which is revealed by d which is present both in EF and PE. In the two remaining similar phrases (bars 62-63 and 74-75), the chord on which the second bar is based differs significantly from the chord in the first bar; adopting the c note as the bass note would reduce the difference mainly to the omission of e1, which does not seem to change the harmonic content.

category imprint: Differences between sources

issues: Errors of JC

b. 71

composition: WN 17, Polonaise in B♭ major

a1 in chord in JC

f1 in EF & PE
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In JC, the highest note of the chord could be considered as the so-called Terzverschreibung if it was not for the  raising f1 into f1 written only before the next chord. However, if we assume that JC copied the text of [AI] correctly, the compatible versions of EF and PE seem to confirm Fontana's access to an additional source of authentic versions, probably corrections of [AI], introduced already after JC had been written.

category imprint: Differences between sources

issues: Terzverschreibung error , Errors of JC

b. 72

composition: WN 17, Polonaise in B♭ major

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We add a cautionary  before f1. The sign was already featured in EF.

category imprint: Differences between sources; Source & stylistic information