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b. 125

composition: WN 29, Waltz in E minor

..

In PE1 (→PE2) there is no  lowering f2 to f2. The patent mistake was corrected in GE. A natural to this note was also added in PE3 (→PE4); however, it was placed on the wrong side of the note – right.

category imprint: Interpretations within context; Differences between sources

issues: Errors resulting from corrections , GE revisions , Sign reversal , Errors in PE , Revisions in #PE

b. 125

composition: Op. 12, Variations in B♭ major

 in FE (→EE)

No markings in GE

..

The absence of the mark in GE probably results from the fact that Chopin entered it into FE (→EE) later, while proofreading, after the copy that served as the basis for GE had been sent. It is proven by a different font of the letter than in the remaining places in the piece.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 125-126

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

..

As in previous bars, the accidentals in A are inaccurate. Chopin did not write two necessary naturals in bar 126 – to the bottom note of the 5th quaver (e2) and the 8th quaver (a1). On the other hand, a few accidentals were unnecessarily repeated – the naturals to f3 and e3 at the end of bar 125 and to a2 at the end of bar 126. In addition, after adding the missing  to the 5th quaver in bar 126, the  to the 7th quaver becomes superfluous. In GE (→FE,EE,IE) only the missing accidentals were added. In the main text we add the necessary accidentals and omit the superfluous repetitions.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Cautionary accidentals , Omission of current key accidentals , Errors of A

b. 125-127

composition: Op. 12, Variations in B♭ major

Markings only in b. 127 in FE (→EE)

No markings in GE

Markings in both bars suggested by editors

..

The absence of markings – dots under the slur – in bar 125 must be considered an oversight, since the chordal motifs in bar 125 and 127 must be performed using the same kind of articulation. Therefore, in the main text we suggest adding respective markings. The easiest explanation for their absence in GE in bar 127 is the engraver's carelessness.

category imprint: Differences between sources; Editorial revisions

issues: Errors in GE

b. 125

composition: Op. 12, Variations in B♭ major

..

The missing  sign in EE is most probably due to the engraver's oversight.

category imprint: Differences between sources

issues: Errors in EE