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b. 24

composition: WN 17, Polonaise in B♭ major

No sign in JC & EF

 in PE

..

In the main text we consider the most probably authentic  hairpins from PE. Cf., e.g., the notes related to bars 20 and 23

category imprint: Differences between sources

b. 24

composition: WN 17, Polonaise in B♭ major

..

JC has a cautionary  before a1, which is unnecessary in this context.

category imprint: Source & stylistic information

issues: Cautionary accidentals , Last key signature sign

b. 24

composition: WN 17, Polonaise in B♭ major

Two  in JC

 in EF

 in PE

..

In each of the sources, the ornament at the end of the bar has a different form. We adopt  written in EF over the R.H., as its application in this place does not raise any stylistic doubts, while  in PE may be a result of a misreading of the sign by the engraver (both  and  tend to be very similar in Chopin's autographs). Therefore, the main text combines the most certain elements of the sources: an ornament, only in the R.H., as it is in EF and PE, and the sign of  from JC and EF.

None of the sources marks lowering the upper note of the trill. We complete this deficiency, as the use of appropriate alterations was most often left to the performers' perspicacity; moreover, the use of a is unquestionable here.

category imprint: Interpretations within context; Differences between sources

b. 24

composition: WN 17, Polonaise in B♭ major

No markings in JC

 and > in #FE

 in PE

..

The combination of  and an accent is featured both in EF and in PE, yet in EF the accent is short, while in PE – long. In JC there are no indications. (In GEF there is no accent in Da Capo, written out in notes). 

category imprint: Differences between sources

issues: Long accents

b. 24-31

composition: WN 17, Polonaise in B♭ major

Slur in JC

Slurs in EF

Slurs in PE

Our suggestion

..

The slurs at the transition between bars 24-25, 26-27 and analogous occur in all sources. The notation of JC is least accurate; it features only the slur in the R.H. in bars 26-27. In EF there are no slurs in bars 30-31 and in PE – in bars 26-27.

category imprint: Differences between sources