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b. 21

composition: WN 17, Polonaise in B♭ major

..

We add a cautionary  before the grace note.

category imprint: Editorial revisions

b. 21

composition: WN 17, Polonaise in B♭ major

No sign in JC & EF

Accent in PE

..

The accent, which is featured only in PE, probably comes from [A].

category imprint: Differences between sources

b. 21

composition: WN 17, Polonaise in B♭ major

No slurs in JC

Slur in EF

Slurs in PE

..

The slur in EF is probably an addition by Fontana, as [AI] (→JC) included a scarce number of performance markings. In the main text we give the slurs of PE, which are most probably authentic.

category imprint: Differences between sources

b. 21

composition: WN 17, Polonaise in B♭ major

 in JC & EF

 in PE

..

In the main text we give the ornaments in the form of  included in PE. The remaining sources feature . In this context, both markings translate into the same performance.

category imprint: Differences between sources

b. 21

composition: WN 17, Polonaise in B♭ major

..

The first note of the bar in JC is the erroneous e instead of f. Similarly in bar 48, which is not written out in JC.

category imprint: Interpretations within context; Differences between sources

issues: Errors of JC