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b. 159-166

composition: Op. 38, Ballade in F major

No slur in sources

Slur suggested by the editors

..

The slur in the R.H. ends in A in bar 158. It is likely that the composer forgot about the slur's continuation after passing to a new line; the slur was not added in any of the editions.
We add it in the main text. 

category imprint: Editorial revisions

issues: Errors of A , Uncertain slur continuation

b. 159

composition: Op. 38, Ballade in F major

..

As a result of an oversight, the E1-E octave in the L.H. in GC is a crotchet. The extending dots were added in GE.

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in GC

b. 161-164

composition: Op. 38, Ballade in F major

Slur from 2nd octave in A (→GCGE)

No slur in FE1

Slur from 1st octave in FE2 (→FE3) & EE

..

FE1 overlooked L.H. slurs in this bar and the two following ones. Chopin supplemented slurring with one slur encompassing bars 161-164 while proofreading FE2 (→FE3). That slur runs from the beginning of bar 161, contrary to A and similar bars 157 and 159. Hence, the engraver might have misplaced the beginning of slur inscribed by Chopin. The later beginning of slur may be regarded as an equivalent variant. The EE version results most likely from an inaccurate reading of A, despite its conformity to FE2.

category imprint: Interpretations within context; Differences between sources

issues: Errors in FE , Authentic corrections of FE

b. 162

composition: Op. 38, Ballade in F major

2 slurs (up to bar 163) in A (→GCGE)

No slurs in FE1

2 slurs (up to bar 164) in EE

Continuous slur in FE2 (→FE3)

..

The continuousslur in FE2 (→FE3), reaching the minim in bar 164, results certainly from Chopin's correction, hence we give this version in the main text. However, it should be noted that Chopin did not changed the shorter slurs of A, and only differently supplemented the slurring overlooked in FE1. The version of A (→GCGE) may be considered an equivalent variant. The EE version may be regarded as an alternative reading of the slurs in A.

category imprint: Differences between sources

issues: Errors in FE , Authentic corrections of FE

b. 166

composition: Op. 38, Ballade in F major

..

As a result of an oversight, the note in the L.H. in GC is a minim. The extending dot was added in GE.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Inaccuracies in GC