Issues : Authentic corrections of FE

b. 48-56

composition: Op. 42, Waltz in A♭ major

Pedalling in FE

Pedalling in EE

No pedalling in FEG (→GE)

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In FE there is no pedalling in bars 48-51 (it is to be found only in bars 55-56). There is no reason to doubt the authenticity of the pedalling in EE even though it could result from Chopin's mistake—while preparing the basis for EE the composer has presumedly written the pedalling into bars 45-51 (the first line of text on the second page of FE and EE) mistaking them for bars 41-47.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE , Authentic corrections of EE

b. 136-140

composition: Op. 42, Waltz in A♭ major

End of slur in FE0

Prolonged slur in FE1

Two slurs in FEG (→GE) & EE

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In FE0 the slur ends on the minim. In the base text to FE1 it was corrected by extending the slur to bar 139 (there is a visible trace of deleting the original slur of FE0). There is no reason to doubt the authenticity of this change, yet in FEG Chopin completed the slurring differently, by adding the second slur in bars 136-140. The latter is also in EE, most probably based on the identical Chopin correction of the base text. Therefore, in the main text we give the version with two slurs, written by Chopin twice. The continuous slur of FE, offering greater flexibility as to the choice of phrasing, may be, however, treated equally.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE , Authentic corrections of GE , Authentic corrections of EE

b. 152-165

composition: Op. 42, Waltz in A♭ major

Slur in FE0

Long slur in FE1

Four slurs in FEG (→GE1)

Four slurs in EE

Five slurs in GE2 (→GE3)

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The slurring in bars 159-164 is clearly incomplete in FE0, which may be a result of Chopin's inaccuracies in [A], errors of the engraver or both. Chopin then changed and completed the slurs in FEG, the base text to EE and proofreading of FE1, yet in all of them differently. In total, it gives three different authentic slurring versions. In the main text we give the version written by Chopin's hand in FEG (→GE1), as in the case of FE and EE, there is a slight possibility that Chopin proofreading was overlaid with certain mistakes, manners or revisions of the engravers.
It is not entirely clear what the motivation of the reviser of GE2 (→GE3) was at the time of breaking the slur between bars 159 and 160. 

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

issues: GE revisions , Authentic corrections of FE , Authentic corrections of GE , Authentic corrections of EE

b. 164

composition: Op. 42, Waltz in A♭ major

c1-e1-a1 in FE1

c1-e1-g1 in FE0 (→GE,EE)

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FE0 (→GE,EE) has the c1-e1-g triad on the 2nd crotchet. While proofreading FE1, Chopin changed the topmost note of this chord from g1 to a1. This version, as the later one, was adopted to the main text.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE

b. 165

composition: Op. 42, Waltz in A♭ major

in FE1, EE, GE2 (→GE3)

No marking in FE0 (→FEGGE1)

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Chopin added the  mark in base texts to FE and EE, they were also added in GE2 (→GE3).

category imprint: Differences between sources

issues: Authentic corrections of FE , Authentic corrections of EE