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b. 101

composition: Op. 12, Variations in B♭ major

..

In the main text we add a cautionary  to d1.

category imprint: Editorial revisions

b. 101

composition: Op. 12, Variations in B♭ major

in FE (→GE), contextual interpretation

rf in EE

..

In FE (→GE) we can see here "zf", which we change to the correct . The issue of the Chopinesque notation of forzato and its variants in other sources is discussed in detail in the note in bar 1. EE opted for a different version (arbitrarily), suggesting rf.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Inaccuracies in FE

b. 102-105

composition: Op. 12, Variations in B♭ major

No slurs in FE1 (→GE,EE)

Slurs in R.H. in FEO

Slurs in both hands, our variant suggestion

..

In the main text we include – in a variant form – the R.H. slurs entered most probably by Chopin between bars 102-103 and 104-105. Taking into account their convergence with the principal slurring pattern in this variation, we suggest adding respective slurs in the L.H. part as well.

category imprint: Differences between sources; Editorial revisions

issues: Annotations in teaching copies , Annotations in FEO

b. 105

composition: Op. 12, Variations in B♭ major

..

The GE1 version, featuring a1 as the R.H. bottom note in the 1st half of the bar, almost certainly resulted by accident from the FE inaccuracy. In FE the  lowering a1 to a1, which should have been directly before this note, was placed by mistake as a third flat in the key signature, hence the GE1 engraver, having no reason to check the key signature, omitted it. GE2 and EE include the correct text, the only authentic one, featuring a1.

category imprint: Interpretations within context; Differences between sources

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

b. 107

composition: Op. 12, Variations in B♭ major

..

In the main text we omit the  to the e1 quaver, unnecessarily repeated in all sources. 

category imprint: Editorial revisions

issues: Cautionary accidentals