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b. 142

composition: Op. 22, Polonaise

..

There are no accidentals before the 4th and 8th semiquavers in FE (→EE,GE). The natural put before c4, the last note in the bar, proves that Chopin considered the  from before the 1st quaver of the bar to be valid up until this place, thus regarding the aforementioned notes as c2 and c3 (cf. a similar situation in b. 144). In accordance with the contemporary rules of chromatic orthography, we provide the discussed notes with sharps.

category imprint: Interpretations within context

issues: Accidentals in different octaves , Cautionary accidentals

b. 142

composition: Op. 22, Polonaise

Mordent in FE

No ornament in GE & EE

..

The absence of a mordent both in EE and GE suggests that we are dealing with an oversight of the engraver of FE, which made its way to these editions; however, in FE it was corrected in the last stage of proofreading. In the main text we add an accidental – often omitted by Chopin in such situations – specifying the pitch of the mordent's top note. 

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: Accidentals in different octaves , Inaccuracies in FE , Authentic corrections of FE

b. 142-144

composition: Op. 22, Polonaise

No marks in FE (→GE)

Accents in EE

..

Propagating the accent from b. 145 to the three previous seemingly similar situations is an arbitrary revision of EE, disregarding the harmonic context. See also b. 134-137.

category imprint: Differences between sources

issues: EE revisions

b. 144

composition: Op. 22, Polonaise

..

The sources are lacking in the  before a1 at the beginning of the 2nd triplet and before a3 at the end of the bar. It is a consequence of the then rule of validity of accidentals in an octave resulting from the notation, and not from the actual pitch. 

category imprint: Interpretations within context

issues: Accidentals in different octaves , Inaccuracies in FE

b. 145-146

composition: Op. 22, Polonaise

..

The traces of removal of rests and demisemiquaver beams, visible in FE, show that every other semiquaver was initially a demisemiquaver preceded by a rest: . In the corrected version, the variants of the rhythm including demisemiquavers are introduced gradually, which makes this sequence more varied and related to the harmonic changes.

category imprint: Corrections & alterations; Source & stylistic information

issues: Authentic corrections of FE , Main-line changes