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b. 134-135

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

Separate slurs in FC (literal reading) & FE (→EE)

Continuous slur in GE

..

In FC the slur in bar 134, the last in the line, suggests that it should be continued, which is not confirmed by the slur beginning in bar 135 from the 1st note. We assume that they are separated slurs, as in FE (→EE), whereas in GE they were interpreted as a continuous slur.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in FC , Uncertain slur continuation

b. 136-137

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

New slur from d2 in FC (→GE)

New slur from c2 in FE (→EE)

..

In FC, the continuous slur written initially by the copyist, encompassing the last 5 bars, was divided into two slurs by Chopin between the 2nd and 3rd beats of this bar. We give this version, undoubtedly Chopinesque and present in the principal source, in the main text. On the other hand, the authenticity of the FE (→EE) version is uncertain, since one can easily imagine that the Chopinesque notation, either in [A] or in the proof copy of FE, could have been misinterpreted. Chopin could have, e.g. written the following, inaccurate slurs: , which in FE were interpreted in accordance with the tendency to adjust marks to regular rhythmic structures, e.g. bars, typical of engravers.
The crossed-out fragment of the initial, continuous slur visible in FC comes from the reviser of GE1, who thus clarified the slurring correction entered by Chopin.

category imprint: Differences between sources; Corrections & alterations

issues: Foreign hand additions in manuscripts , Authentic corrections of FC

b. 136-139

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

slentando in FC (→GE)

smorz. - - in FE (→EE)

..

Chopin entered slentando into FC (→GE). Similarly, Chopin added the smorz. - - indication present in FE (→EE) probably only just while proofreading this edition.
Therefore, both indications, of a similar meaning, can be regarded as equal variants.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Authentic corrections of FE , Authentic corrections of FC