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b. 151-152

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

..

In the 2nd half of each of these bars, GC and FE1 (→FE2FE3) have no naturals. The necessary signs – before a1 and a – were added in GE, FE4 and EE (in EE1 only in bar 152).

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , Inaccuracies in FE , GE revisions , EE inaccuracies , Inaccuracies in GC

b. 151

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

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GE1 overlooked the slur over the first L.H. triplet. The mistake was corrected in GE2.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 152

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

One-bar slur in GC (→GE)

No slur in FE

Half-bar slur in EE

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In GC two semi-bar slurs of the L.H. were combined, probably by Chopin. We include the correction in the main text, particularly due to the fact that EE includes an incomplete slurring in this place, whereas FE does not contain it at all.

category imprint: Differences between sources

issues: Authentic corrections in GC

b. 152

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

No sign in GC (→GE) & FE (→EE)

[] suggested by the editors

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We suggest adding the  sign, overlooked in the sources, in accordance with the harmonic sense at the end of this bar. However, it cannot be excluded that Chopin considered here a change of the pedalling scheme from the previous bars, e.g., due to the lower register of the R.H. part.

category imprint: Editorial revisions

issues: No pedal release mark

b. 153-156

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

Three-bar long  in GC (→GE)

One-bar long  in FE1 (→FE2EE)

No sign in FE3 (→FE4)

..

In the main text we include the  sign written in GC (→GE). The shorter hairpin in FE1 (→FE2EE) is probably inaccurate; its removal in FE3 (→FE4) also seems to be a mistake – crescendo is so natural here due to the quickly ascending progression and accumulation of harmonies due to pedalling. See also bars 158-160.

category imprint: Differences between sources

issues: Authentic corrections of FE