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b. 126

composition: Op. 2, Variations, complete

e1-a1 in AsI

e1-a1 after AsI

a1-c2 in A (→GEFE,EE,FESB)

a1-c2 after A (→GEFE,EE,FESB)

..

The version of AsI is the initial version of this place. In the final one, Chopin raised the position of the 2nd and 3rd L.H. quavers and simplified the excessively precise rhythmic notation of the 2nd half of the bar in which both notes have the value of semiquavers complemented with rests.

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes

b. 126

composition: Op. 2, Variations, complete

Quaver a2 in AsI

Quaver a2 after AsI

Semiquaver a2 in A (→GEFE,EE,FESB)

..

The separated a2 quaver leads to b2 in the next bar, thus creating a complete melodic sequence in the R.H. part (e4-a2-b2), alternative with respect to the line using the L.H. f4 (e4-f4-b2). Eventually, Chopin simplified the notation; perhaps he did not want to divert attention from the main line.

category imprint: Differences between sources; Corrections & alterations

issues: Main-line changes

b. 126

composition: Op. 2, Variations, complete

..

In the main text we add a cautionary  to e1. The accidental was also added in GE3.

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 127

composition: Op. 29, Impromptu in A♭ major

..

In A the fermata overlaps the slur, which probably contributed to the error of the engraver of GE who interpreted it as a staccato dot. We double the fermata in the L.H. analogously to FE and EE.

category imprint: Differences between sources; Editorial revisions

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