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b. 61

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

d in GC (→GE) & FE1 (→FE2EE)

D in FE3 (→FE4)

..

The version of FE3 (→FE4) is a certain Chopin improvement, in accordance with the version of this bar in the recapitulation (bar 189).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 66

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

Four-note chord in GE, FE (→EE) & GE2

Octave in GE1

..

The absence of middle notes of the chord is certainly an error of the engraver of GE1.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 68

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

c2-c3 in GC (→GE)

e2-e3 in FE (→EE)

..

The comparison with the respective bar of the recapitulation (bar 196), as well as with analogous motifs in bars 52 and 180 and 50, 66, 178 and 194, makes us consider the version of GC to be erroneous.

category imprint: Differences between sources

issues: Terzverschreibung error , Errors of GC

b. 70

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

b2-d3 in GC (→GE) & FE2 (→EE,FE3FE4)

Open octave in FE1

..

The absence of the middle notes of the chord at the beginning of the bar is certainly an oversight of the engraver of FE1.

category imprint: Differences between sources

issues: Errors in FE , FE revisions

b. 71-72

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

..

In the main text, we add cautionary flats before ein the R.H. and e1 in the L.H.

category imprint: Editorial revisions