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b. 131

composition: Op. 12, Variations in B♭ major

No slur in FE (→GE,EE)

Slur suggested by editors

..

In the main text we add a slur after the one present in the sources in an analogous figure in the 2nd half of the bar. The L.H. slurs in bars 129-131 include a few similar inaccuracies.

category imprint: Editorial revisions

b. 133

composition: Op. 12, Variations in B♭ major

Staccato dots in FE (→EE)

No staccato dots in GE

..

The absence of staccato dots in GE must be a mistake, since dots are present in the L.H. part.

category imprint: Differences between sources

issues: Errors in GE

b. 133

composition: Op. 12, Variations in B♭ major

L.H. slur to b1 in FE (→GE,EE)

Slur to c2 & R.H. slur suggested by editors

..

Taking into account the 4 subsequent slurs in this and the next bar, always encompassing entire motifs, we consider the source L.H. slur to be inaccurate (one can assume negligence by the engraver or by Chopin in [A]). Therefore, in the main text we suggest a slur reaching c2; we also add a respective R.H. slur.

category imprint: Editorial revisions

b. 133

composition: Op. 12, Variations in B♭ major

..

In the sources the naturals to a2, e2 and a1 are missing. This patent inaccuracy is partly due to the conviction that accidentals at a given pitch are valid regardless of the presence or absence of an octave sign.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Accidentals in different octaves , Errors repeated in GE , Errors repeated in EE

b. 133

composition: Op. 12, Variations in B♭ major

..

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