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b. 172

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

..

GC (→GE) and FE have a cautionary  before the 3rd crotchet in bar 172 (g). The superfluous sign was removed in EE.

category imprint: Differences between sources

issues: EE revisions , Cautionary accidentals

b. 172

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

..

FE has no  restoring f on the last crotchet. The mistake went unnoticed in consecutive corrections of FE, as well as in pupils' copies. However, it cannot be ruled out that the sign added in EE was indicated by the composer.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Authentic corrections of EE

b. 175-176

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

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All sources include naturals before d2 in bar 175 and before in bar 176. Together with the  in bar 172 they prove that, after having changed the key signature signs, Chopin's awareness of the key in which the music is written was not entirely formed yet.

category imprint: Editorial revisions

issues: Cautionary accidentals

b. 180

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

f in GC (→GE) & FE2 (→EE,FE3FE4)

a in FE1

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The version of FE1 is most probably a mistake, corrected already in FE2.

category imprint: Differences between sources

issues: Errors in FE , Terzverschreibung error , FE revisions

b. 183-184

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

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We add a cautionary  before b1 in bar 183 and a  before f1 in bar 184. The first one was added already in GE2.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions