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b. 218

composition: Op. 35, Sonata in B♭ minor, Mvt I

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The notation of accidentals in the penultimate chord in the R.H. in bar 218 is inaccurate in the sources. The  raising e2 to e2 is absent in all sources, whereas the  raising g2 to g2 is present only in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Inaccuracies in FE , GE revisions , Omission of current key accidentals , Inaccuracies in GC

b. 218-219

composition: Op. 35, Sonata in B♭ minor, Mvt I

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GC includes identical sets of accidentals in the last chord in the R.H. in bar 218 and the first one in bar 219 – a  before the top bottom note (d2) and a  raising g2 to g2. In GE1, the  in bar 218 was printed before e2, which has to be considered to be a mistake, as the sign before dwas placed correctly, whereas the  before eshould have been already in the previous chord. In GE2 it was noticed that in bar 219 the  is supposed to concern the adjacent note, e2, however, the erroneous notation of bar 218 was left unchanged. FE (→EE) include the correct notation.

It is worth observing that in GC and FE the  before gin the last chord in bar 218 is not unnecessary, as the sign is absent in the previous crotchet.

In the main text, we add a cautionary  before din bar 218. 

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

issues: Errors in GE , GE revisions , Inaccuracies in GC

b. 218

composition: Op. 35, Sonata in B♭ minor, Mvt I

gis1 in chord in GC (→GE)

No g1 in FE (→EE)

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No bottom g1 is certainly an oversight of the engraver of FE (→EE).

category imprint: Differences between sources

issues: Errors in FE

b. 219-221

composition: Op. 35, Sonata in B♭ minor, Mvt I

 in GC

 in FE (→EE)

 in GE

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One  sign in FE indicates that two signs in GC (separated with a transition to a new line) are to be interpreted as a continuous . The notation of GE is certainly arbitrary – erroneous or revised. In GC and GE the dashes marking the range of crescendo from bar 217 are led to the beginning of the  hairpin, in spite of the fact that in each of these sources the signs start in another place.
Due to the relation of the  hairpin with the preceding it cresc. - -, which was overlooked in FE, in the main text we give the ending of the dashes and the hairpin on the basis of GC. According to us, however, the slightly earlier started  sign in FE (→EE) reproduced Chopin's notation probably in a more accurate manner.

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in GE , Scope of dynamic hairpins

b. 219

composition: Op. 35, Sonata in B♭ minor, Mvt I

No marks in the sources

Staccato marks suggested by the editors

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In the main text we suggest adding staccato signs after analogous bar 91.

category imprint: Editorial revisions