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b. 125

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

in FC (→GE)

No marking in FE (→EE)

..

In the main text we give , entered probably by Chopin into FC (→GE).

category imprint: Differences between sources

issues: Authentic corrections of FC

b. 127

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

No ornament in FC

in FE (→EE) & GE

..

The missing  in FC must be an oversight by the copyist, corrected in GE.

category imprint: Differences between sources

issues: GE revisions , Errors of FC

b. 127-129

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

c1 only in chord in b. 128 in FC

4 notes c1 in chords in FE (→EE) & GE2

No c1 in chords in GE1

..

The three-note chords present in FE (→EE) are much more likely here, since they prepare and open the chordal sequence in bars 129-132. The FC version almost certainly resulted from the copyist's carelessness, who did not take care of the visibility of the notes written on the ledger line. This is indicated by the notation of the first two chords in bar 129, in which it is also the e1 notes that are practically imperceptible, although their presence is unquestionable. In GE1 it was also c1 in bar 128 that was overlooked, in spite of the presence of this note having been marked in FC. The notes overlooked in GE1 were added in GE2, perhaps on the basis of a comparison with FE.

category imprint: Differences between sources

issues: GE revisions , Uncertain notes on ledger lines , Errors of FC

b. 130-132

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

..

In this chromatic progression, the notation of the sources does not contain any mistakes, and Chopin took care of a few cautionary accidentals – to g1-b1 at the beginning of bar 130, to g1 in bar 131 and to d1-f1 in bar 132. In the main text we also add naturals to e in bar 130 and to B and a in bar 132. The latter were also added by GE (a  to B) and EE (a  to a).

category imprint: Differences between sources; Editorial revisions; Source & stylistic information

issues: EE revisions , GE revisions , Cautionary accidentals

b. 130-131

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

Separate slurs in FC (→GE)

Continuous slur in FE (→EE)

..

The division of the slur in FC falls on such unnatural place that one could assume a misunderstanding in the reading of [A], e.g. caused by the transition into a new line in the autograph. Due to the above, in the main text we give the slur of FE, more reliable in this context. 

category imprint: Differences between sources