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Slurs

b. 219-220

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

2 slurs in GC (literal reading→GE)

Continuous slur in GC (contextual interpretation) & FEEE)

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The version of GE probably results from a misinterpretation of the notation of GC – in this manuscript, b. 219 ends a great stave, and the slur, due to the discontinuation of ink flow, is poorly visible, hence it seems that it does not go beyond the last crotchet. However, the slur in b. 220 very clearly suggests continuation, which is confirmed by a continuous slur in FE (→EE).

category imprint: Differences between sources

issues: Inaccuracies in GC , Uncertain slur continuation

b. 221-225

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

Slurs in GC

No slurs in FE

Slurs in EE

Slur in GE1

Slurs in GE2

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The absence of the slurs in FE, unless it is a simple oversight, suggests that the slurs in GC could have been added by Chopin. They were reproduced inaccurately both in GE1 and in GE2. Most probably, the slurs added in EE are also authentic, following the line of the changes of notation, introduced gradually by Chopin here and in the analogous fragment of the exposition (see bars 93-97). We suggest the latter, as the latest and most accurate, in the main text.
(Double slurs, as the ones in the L.H. in bars 222 and 224, were used by Chopin, e.g., in the Concerto in F minor, Op. 21, 3rd mov., bars 473-480. However, one may have doubts whether the fact of doubling the signs was not an idea of the reviser of EE.)  

category imprint: Differences between sources

issues: Authentic corrections of EE

b. 228-229

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

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In GE this bar ends the line, and the opening fragment of the slur which starts from the G1-G octave, falling in this bar, is mistakenly omitted.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in GE , Uncertain slur continuation

b. 234

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

Slur in GC, FE (→EE) & GE2

No slur in GE1

..

The absence of the first slur is certainly an engraver's mistake, corrected in GE2.

category imprint: Differences between sources

issues: Errors in GE , GE revisions