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b. 137-138

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

..

In GC and FE, which certainly reproduce the notation of [A], the naturals before the and notes are written only in the extreme voices – next to the bottom notes in the L.H. and top in the R.H. An exception are the D1-D octaves (both notes provided with naturals, although in FE1-FE3 only in bar 138) and the devoid of  g3 note in bar 138. In GE and EE the notation is correct (except for the devoid of naturals D1-D quaver in bar 137 in EE1).

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Inaccuracies in FE , GE revisions , FE revisions , Inaccuracies in GC

b. 137

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

2 different slurs in GC

No 2nd slur in FE1

2 different slurs in FE2 (→EE,FE3FE4)

2 half-bar-long slurs in GE

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The inconsistent with the bar stucture L.H. slurring in GC as well as the lack of the second L.H. slur in FE1 are almost certainly mistakes by the copyist and the engraver. On the other hand, the slur added in FE2 (→EE,FE3FE4) is probably inaccurate, as evidenced by the slurring of the subsequent bars. In the main text, we give the probable reconstruction of the slurs in [A], aptly guessed in GE.

category imprint: Differences between sources

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

b. 137-138

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

Pedal change in GC

No pedal change in FE (→EE)

Pedal change in GE

..

We adopt the pedalling from FE in the main text, for it is consistent with the pedalling of the subsequent bars. The placement of the  sign in GE, although apt from a pianistic point of view, is nevertheless a probable arbitrariness of the engraver.

category imprint: Differences between sources

issues: Inaccuracies in GE , Inaccuracies in GC

b. 139

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

..

In GE and EE2, a cautionary  was added next to d1 in the L.H. In the main text, we also add a  next to f3 in the R.H.

category imprint: Editorial revisions

issues: EE revisions , GE revisions

b. 141

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

g2-b2 in GC (→GE) & FE1 (→FE2EE)

g2-b2 in FE3 (→FE4)

..

The version of the 4th quaver with b2 cannot be authentic, as the  visible before this note in GC and FE1 (→FE2EE1) was probably supposed to concern the bottom note of the third, g2 (the revisers of GE and EE2 added another  here, considering its absence a common oversight). It is proved by a comparison with analogous bars – in all the remaining places (bars 137, 143, 145 and 147-149) the top voice of the dyads is led diatonically, without raising the note on the 4th quaver in the bar. It is confirmed by the Chopinesque proofreading of FE3 (→FE4), in which the sign was moved before the bottom note, which proves that the composer heard here g2-b2. On the other hand, if g2-b2 had really been intended by Chopin from the very beginning, the  in [A] would have probably been misplaced, since two persons – the copyist and the engraver of FE1 – misinterpreted it. 

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , GE revisions , Omission of current key accidentals , Authentic corrections of FE