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b. 28

composition: WN 17, Polonaise in B♭ major

..

The cautionary  before a, visible in JC and EF, is unjustified here. Chopin could have written it, while hearing in advance the a on the 6th quaver and the introduced in the next bar C minor key.

category imprint: Differences between sources

issues: Cautionary accidentals

b. 29

composition: WN 17, Polonaise in B♭ major

..

JC has an erroneous a1 (with a ) as the lower note of the 1st third. In this manuscript, there is a  before the lower note of the 3rd third (b1). 

category imprint: Interpretations within context; Differences between sources

issues: Cautionary accidentals , Errors of JC

b. 29-31

composition: WN 17, Polonaise in B♭ major

..

In bars 29 and 31 we add a cautionary  before a1. In the latter, the sign is in JC.

category imprint: Differences between sources; Editorial revisions

issues: Cautionary accidentals

b. 31

composition: WN 17, Polonaise in B♭ major

..

We add a cautionary  before b2. The sign is already featured in EF.

category imprint: Differences between sources; Editorial revisions

issues: Cautionary accidentals

b. 31

composition: WN 17, Polonaise in B♭ major

..

 

In JC, there is no  before the upper note of the octave on the 6th quaver of the bar. It is an evident inaccuracy of the notation.

category imprint: Differences between sources

issues: Inaccuracies in JC