Issues : Errors of JC

b. 17

composition: WN 17, Polonaise in B♭ major

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At the beginning of the bar, JC includes the erroneous B1-A seventh. Similarly in bar 44, which is not written out in JC.

category imprint: Interpretations within context; Differences between sources

issues: Errors of JC

b. 17

composition: WN 37, Lento con gran espressione

No L.H. slurs in A1, CK & EL

2 slurs in CK (→CB)

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The slur written in CK over the 1st accompaniment figure most probably comes from [A2], hence we give it in the main text (due to the abridged notation of the 2nd half of the bar as repetition of the 1st half, we consider this slur to have been repeated over the 2nd figure). The slurs – just like for the most part of the Lento – are also in CB.

category imprint: Differences between sources

issues: Errors of JC

b. 18

composition: WN 37, Lento con gran espressione

Slur in A1

No slur in CJ & EL

Slur in CK

Slur in CB

category imprint: Differences between sources

issues: Errors of JC , Balakirev's revisions

b. 19

composition: WN 17, Polonaise in B♭ major

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In JC there is no  in front of c3, which in the original notation, in which the octave sign begins already from this note, is an evident error. Similarly in bar 46, which is not written out in JC.

category imprint: Interpretations within context; Differences between sources

issues: Cautionary accidentals , Errors of JC

b. 19

composition: WN 17, Polonaise in B♭ major

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In JC there is no  lowering a3 into a3, which is a patent error; in the copy there is also no relevant sign before a2. PE is also missing a flat before the latter, which can correspond to the notation of [A], as Chopin often extended the validity of cautionary accidentals onto entire passages or scales of this kind.

The same applies to bar 46, marked in the sources as a repetition of bar 19. 

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Omission of current key accidentals , Errors of JC , Inaccuracies in PE