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b. 140

composition: Op. 50 No. 3, Mazurka in C♯ minor

e-a in AI, AF, GEEE

e-c1 in FE

..

In the main text we give the sixth of FE, introduced by Chopin in the last stage of proofreading instead of a fourth, present in the remaining sources. One can see traces of a correction in the copies of FE.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 140

composition: Op. 50 No. 3, Mazurka in C♯ minor

a1-e1-d1 in AI

b1-a1-e1 in AF (→FEEE) & GE

..

The version of AI is the initial one and was then changed, most probably at the time when the R.H. top voice was being added.

category imprint: Differences between sources; Corrections & alterations

issues: Main-line changes

b. 140

composition: Op. 50 No. 3, Mazurka in C♯ minor

Pedalling in AF (→FEEE)

No markings in GE

..

The missing pedalling markings in GE may be an inadvertence of Chopin or a mistake of the engraver – cf. the note to b. 137-138. Due to this reason, in the main text we give the pedalling markings of AF (→FEEE), particularly since they are present in FE, in which Chopin proofread the accompaniment in this bar – see the note above.

category imprint: Differences between sources

b. 141-143

composition: Op. 50 No. 3, Mazurka in C♯ minor

  in AF (→FE)

  in GE

 in EE

..

In the main text we give the   hairpins after AF (→FE), in which they are compliant with all markings of the sources in analogous b. 145-147. It suggests that the marks of GE in the discussed bars may be inaccurate. The absence of the second mark in EE is most probably a mistake.
In AI such markings are absent for the rest of the Mazurka.

category imprint: Differences between sources

issues: Scope of dynamic hairpins

b. 141-143

composition: Op. 50 No. 3, Mazurka in C♯ minor

No slur in AI 

Slur from b in AF

Slur from c1 in FE (→EE) & GE

..

It is unclear whether Chopin wanted the slur to begin from the c1 quaver or the b crotchet. The fact that the slur in FE (→EE) starts earlier than in AF is most probably an inaccuracy, which suggests that the slur of GE, of the same range, can also be inaccurate. However, the shape of the slur of GE1 shows that its initial fragment was being corrected in print, perhaps at Chopin's request, hence this is the version we give in the main text.
AI is devoid of slurs in these and next bars (until b. 152), which together fill the last line of the 2nd page of AI. Therefore, it is Chopin's inadvertence – on the next page the R.H. slurring is continued in this autograph.

category imprint: Differences between sources

issues: Inaccuracies in FE , Authentic corrections of GE