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b. 68

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

..

FE1 (→FE2) features a D-G-d chord as the last crotchet. This patent mistake was corrected in FE3 (→FE4,FE5) and EE, as well as in FESch. An erroneous copying of the bottom stave from the previous bar in this bar is proved also by an unjustified repetition of pedalling.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , Errors in FE , Authentic corrections of FE , Authentic corrections of EE , Annotations in FESch

b. 68-69

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

Slur in GC (interpretation) & GE2mar (→GE2)

Slur in GE1 & FE3 (→FE4,FE5)

Slurs in EE

..

The analysis of all four analogous places (bars 14-16, 22-24, 68-70 and 76-78) leads to a conclusion that the slur in GE1 and the same slur added in the proofreading of FE3 (→FE4,FE5) are probably inaccurate. In turn, the remaining two versions may be considered to be authentic – they are two most justified interpretations of the notation of GC. In the main text we give the version of EE, whose accordance with Chopin's idea is, according to us, most likely.
In FE1 (→FE2) there are no slurs at all, which is a patent error. 

category imprint: Interpretations within context; Differences between sources

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

b. 68

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

Long accent in GC & EE2

No mark in FE (→GE1)

Short accent in GE

..

The clearly long accent in GC (in bar 14, whose repetition bar 68 is) was reproduced in GE as a short one. The sign was added also in EE2.

category imprint: Differences between sources

issues: Long accents , EE revisions , Inaccuracies in GE

b. 69

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

in GC (→GE) & FE1 (→FE2EE1)

in FE3 (→FE4,FE5) & EE2

..

Chopin changed  to , while proofreading FE3 (→FE4,FE5). Together with the crescendo added in bars 56-60 the change indicates a different – enhanced or more contrasted – shaping of dynamics in the recapitulation of Marche. See also bars 61-62

category imprint: Differences between sources; Corrections & alterations

issues: EE revisions , Authentic corrections of FE

b. 70

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

End of slur in GC, literal reading (→GE1)

End of slur in GC (contextual interpretation→GE2marGE2) & FE3 (→FE4,FE5) & EE

..

In GC, same as in bar 16 (bar 70 is only marked as its repetition), the end of the slur may be interpreted in two ways. In the main text, we give a more likely, conventional interpretation of this detail, present in the majority of the editions – only in GE1 the end of the slur was reproduced literally, whereas in FE1 (→FE2) the slur in bars 69-70 was totally overlooked.

category imprint: Graphic ambiguousness; Differences between sources

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