Issues : Uncertain notes on ledger lines

b. 23

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

..

In GE1 (→FEEE) the quaver c1 from A was misread as extended to a crotchet with an additional downward stem.

category imprint: Graphic ambiguousness; Differences between sources

issues: Uncertain notes on ledger lines

b. 29

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

One-part notation in  A

Additional crotchets in GE (→FEEE)

..

The way in which both c1 notes were written in A was the reason why in GE (→FEEE) they were interpreted as having additional downward crotchet stems. Moreover, at the beginning of the bar each of the notes of the seventh c1-b flat2 was written as belonging to a different voice. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Uncertain notes on ledger lines

b. 31

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

..

In A, the quaver c1 in this bar does not differ much from those from bars 23 and 29, yet the editions do not have an extra crotchet stem added here (except GE3). 

category imprint: Differences between sources; Source & stylistic information

issues: GE revisions , Uncertain notes on ledger lines

b. 127-128

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

A probable reading of A (→GE)

A possible reading of  A

FE (→EE1EE2)

..

A (→GE) has triads as the 2nd and the 3rd crotchets of those bars, although in the first triad in bar 127 the note c1 is practically invisible in the manuscript. When proofing FE, Chopin removed the middle notes of the triads leaving only the sixths. That corrected version was repeated in EE1 (→EE2). EE3 returned to the version of GE1 with the full triads (the omitted note b flat on the 2nd beat of bar 128 must be a mistake).

category imprint: Graphic ambiguousness; Differences between sources; Corrections & alterations

issues: EE revisions , Authentic corrections of FE , Uncertain notes on ledger lines