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b. 21

composition: WN 17, Polonaise in B♭ major

..

We add a cautionary  before a1.

category imprint: Editorial revisions

b. 22

composition: WN 17, Polonaise in B♭ major

Tied b2 in JC

Repeated b2 in #FE

Rest in PE

Our suggestion

..

At the beginning of the bar, both JC and EF have a bquaver (without any performance markings). The note in JC is linked with a slur with the previous bat the end of bar 21; the slur seems to sustain the note. In the same place, PE has a quaver rest, which, according to us, was erroneously inserted instead of a note (the engraver's error would consist in repeating the rest featured after the aquaver before it). In the main text we propose a version in which the described possible error of PE was corrected on the basis of the remaining sources. At the same time, we consider a possible in this context staccato dot over the note. 

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: Errors in PE

b. 22

composition: WN 17, Polonaise in B♭ major

Crotchet in JC & EF

Quaver and rest in PE

..

The chromatic, homogenous progression of syncopations in JC and EF was divided into two motifs in PE, according to the flow of harmonic tensions.

category imprint: Differences between sources

b. 22

composition: WN 17, Polonaise in B♭ major

No marks in JC & EF

Dots in PE

..

In the main text we give staccato dots (and taking into consideration the slurs – portato), featured only in PE

category imprint: Differences between sources

b. 22

composition: WN 17, Polonaise in B♭ major

..

JC has a cautionary  before the 4th semiquaver, a1. In the light of the currently binding rules, a sign in this position is superfluous.

category imprint: Source & stylistic information

issues: Cautionary accidentals , Last key signature sign