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b. 62

composition: WN 17, Polonaise in B♭ major

..

The natural raising binto bis featured only in JC (cf. the note on other naturals in this bar). It is certainly a result of using different convention regulating the rules of validity of the accidentals taking into consideration the octave sign.

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves

b. 62

composition: WN 17, Polonaise in B♭ major

..

JC includes naturals (cautionary?) before each b3 and bin this bar (except for those in the main text still before the 1st semiquaver of the 2nd and 3rd groups and before the last semiquaver of the bar).

category imprint: Source & stylistic information

issues: Cautionary accidentals

b. 63

composition: WN 17, Polonaise in B♭ major

in JC & EF

e in PE

..

The accuracy of e in PE is highly unlikely in this context, as the note makes the G-f2 seventh resolve on the e-e2 unison with a tripled third in the C minor chord. Therefore, we consider it to be erroneous and we adopt featured in JC and EF to the main text.

category imprint: Differences between sources

issues: Terzverschreibung error , Errors in PE

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. 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