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b. 100-101

composition: Op. 30 No. 4, Mazurka in C# minor

Slur to crotchet G in sources

Slur to C suggested by the editors

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In the main text we give a slur resulting from the changes introduced by Chopin to FC, striving at integrating the beginning of the Mazurka main theme, that is the 1st beat of bar 101, with the preceding four-bar section, in particular the change of the chord to a single note, closing the bass line, and the extension of the R.H. slur. According to us, the fact that Chopin did not explicitly mark such an extension in the L.H. part is an oversight in the implementation of this wide-ranging change. 

category imprint: Editorial revisions

issues: Errors resulting from corrections , Authentic corrections of FC

b. 100-101

composition: Op. 49, Fantaisie in F minor

Slur in b. 100 in A & FE (contextual interpretation→EE)

Slur to b. 101 in GE

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The ending of the last A slur reaches the bar line at the end of a page, which could suggest that it should be continued, and this is how it was interpreted in GE, despite the fact that in bar 101 (on a new page) there is no continuation of this slur. According to us, it is not conveyed by the A notation, not to mention the musical sense, hence in the main text we lead the slur to the last quaver in bar 100. The FE notation is also ambiguous, due to the same reason as in A – the slur in bar 100, at the end of a line, suggests that it should be continued, but there is no continuation in bar 101. The interpretation of EE coincides with our assessment.

category imprint: Graphic ambiguousness; Differences between sources

issues: EE revisions , Inaccuracies in FE , Inaccurate slurs in A , Uncertain slur continuation

b. 100

composition: (Op. 4), Sonata in C minor, Mvt I

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In A the flats lowering the g minim to g and the penultimate d2 quaver to d2 are missing. Both accidentals, certainly overlooked, were added by GE (→FE,EE,IE).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Inaccuracies in A

b. 100-114

composition: Op. 12, Variations in B♭ major

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In bars 100, 112 and 114 FE (→EE) has rittenuto instead of the correct ritenuto. GE gives the shortened form riten.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , GE revisions , Errors repeated in EE

b. 100

composition: Op. 12, Variations in B♭ major

..

In the main text we add a  restoring f1 at the beginning of the 2nd half of the bar (omitted in all sources).

category imprint: Interpretations within context

issues: Errors in FE , Omissions to cancel alteration , Errors repeated in GE , Errors repeated in EE