Issues : Errors of JC

b. 63

composition: WN 17, Polonaise in B♭ major

..

In JC, the  before the 6th semiquaver is erroneously written on the level of d2. Moreover, the manuscript also features a  before b1 on the 9th semiquaver. 
In PE, the  appears before bon the 4th semiquaver (due to different range of the octave sign), as well as before b1 on the 9th semiquaver (instead of a more justified sign before the 6th semiquaver).
In EF, the notation of accidentals does not differ from the one adopted by us. 

category imprint: Differences between sources; Source & stylistic information

issues: Accidentals in different octaves , Errors of JC

b. 63

composition: WN 17, Polonaise in B♭ major

Rhythm of upper voice in EF

Rhythm in JC (interpretation) & PE

..

On the 4th quaver of the bar in JC, there is a figure which fills a crotchet with its rhythmic values: . According to us, the error consists in writing two-time bigger rhythmic values and could be already in [AI]. This kind of mistakes was frequent in Chopin's works, e.g., in the Nocturne in D major, Op. 27 No. 2, bar 56. The hypothesis allows to explain also the creation of the version of EF: having encountered the error in [AI], Fontana corrected it with the method of as little changes as possible, extending the lower beam. In the main text we give the probably unique authentic rhythm, recreated faultlessly in PE.

category imprint: Interpretations within context; Differences between sources

issues: Rhythmic errors , Errors of JC

b. 64

composition: WN 17, Polonaise in B♭ major

a-c1-a1 in JC

a-f1 in EF

a-c1-f1 in PE

..

a1 as the highest note of the chord is most probably an error of JC; it is revealed by f1 which is featured both in EF and PE. Analogously, the compatible presence of the cnote in this chord in JC and PE leads to a conclusion that its omission is probably an error of EF. In the main text we give the version of PE, which does not raise any doubts.

category imprint: Differences between sources

issues: Terzverschreibung error , Uncertain notes on ledger lines , Errors of JC , Errors in Fontana's editions

b. 65

composition: WN 17, Polonaise in B♭ major

f1-c2 in JC

d1-f1-c2 in EF & PE

..

Lack of d1 in JC is probably an oversight.

category imprint: Differences between sources

issues: Errors of JC

b. 65-66

composition: WN 17, Polonaise in B♭ major

..

In JC, there is no octave sign over the part of the R.H. in those bars, as a result of which, the entire bar 65 and two triplets in bar 66 are written one octave lower. The awkward blends with the part of the L.H. (the second triplets of both bars) and the compatible version of EF and PE reveal the copyist's error in this place. Similarly in bars 101-102.

category imprint: Source & stylistic information

issues: Errors of JC