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b. 137-139

composition: Op. 2, Variations, complete

..

In these bars, in AsI the L.H. part is marked in an abridged manner with the word unisono, written in each bar. There is a similar situation further on, until the end of this variation (b. 167).

category imprint: Differences between sources

issues: Abbreviated notation of A

b. 137-138

composition: Op. 2, Variations, complete

..

In AsI the accidentals restoring c1 and b at the end of b. 137 are missing; the  raising e1 to e1 in b. 138 is absent too. A similar situation occurs in the L.H. part, which is marked in an abridged manner as doubling in unison the R.H. part. In A and the editions the notation is correct.

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Omission of current key accidentals

b. 137

composition: Op. 49, Fantaisie in F minor

d1-a1 in A (→GE) & FE2 (→EE)

e1-a1 in FE1

..

The fourth in FE1 must be a mistake, which is proven by both the A (→GE) version and the correction in FE2 (→EE), perhaps ordered by Chopin.

category imprint: Differences between sources

issues: Errors in FE , FE revisions

b. 137

composition: Op. 12, Variations in B♭ major

..

In FE (→GE1) the  raising g1 to g1 is missing. The mistake is proven by both the further course of the figuration, using e2 and g2 (at the beginning of the trill in bar 138), and the comparison with analogous bar 119. The mistake was corrected in GE2 and EE.

category imprint: Interpretations within context; Differences between sources

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

b. 138

composition: Op. 24 No. 4, Mazurka in B♭ minor

 in A (literal reading) and EE

 

GE (→FE)

..

 in A is placed before the last chord of the L.H. but after its initial deleted version. In the editors' opinion, when changing the notation of the chord Chopin failed to notice the consequent change of the spatial relation between that crotchet  and the . That is why in our main text we put the  after the 3rd crotchet. In GE (→FE) the sign was placed under the 3rd crotchet, and in EE even before it. 

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in GE , Errors resulting from corrections