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b. 134-135

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

2 slurs in GC, GE2 & EE

1 slur in FE

No slurs in GE1

..

The absence of slurs in GE1 is undoubtedly an oversight of the engraver, rectified in GE2. The FE version also results most probably from the engraver's mistake. The slur omitted in FE was added in EE, perhaps at Chopin's request.

category imprint: Differences between sources

issues: Errors in FE , Errors in GE , GE revisions , Authentic corrections of EE

b. 134-135

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

3 slurs in GC

2 slurs in GE

4 slurs in FE (→EE)

..

The comparison with analogous bars 125-126 and 133 indicates that the slurring in FE (→EE) is correct. Therefore, the longer slurs in GC and GE result probably  from misreading [A] by the copyist and GC by the engraver.

category imprint: Differences between sources

issues: Inaccuracies in GE , Inaccuracies in GC

b. 135-136

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

..

GE1 overlooked the initial, falling on bar 135, fragment of the  hairpin. The mistake was corrected in GE2.

category imprint: Interpretations within context; Differences between sources; Source & stylistic information

issues: Errors in GE , GE revisions

b. 136-137

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

..

In the main text we add cautionary flats before e2 and e1 in bar 136 and B1-B in bar 137. The signs were added already in GE and EE2. GE also added a cautionary  before b2 in bar 137.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions

b. 136

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

..

We add a cautionary  before in the L.H. On the other hand, EE added a poorly justified cautionary  before f2 in the last R.H. octave.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions