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b. 9-26

composition: Op. 42, Waltz in A♭ major

..

We add cautionary flats next to din bar 9 and ein bar 10, as well as next to the respective notes in bars 25-26. The additions were also performed in GE1 (→GE2GE3).

category imprint: Differences between sources

issues: Cautionary accidentals

b. 10

composition: Op. 42, Waltz in A♭ major

e-g in FE1, GE & EE

B-d-g in FE0

..

On the 2nd and 3rd crotchet FE0 has B-d-g chords. Chopin changed them for the e-g thirds both in FEG (→GE) and in the base texts to FE and EE. Lack of respective change in analogous bar 182 is probably a result of an oversight.

category imprint: Corrections & alterations

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

b. 13

composition: Op. 42, Waltz in A♭ major

..

GE1 and EE have a cautionary  added next to a. The sign was removed in GE2 (→GE3). We also believe that this addition is unnecessary.

category imprint: Differences between sources

issues: EE revisions , GE revisions

b. 17

composition: Op. 42, Waltz in A♭ major

..

GE1 (→GE2GE3) has a superfluous cautionary  next to b1 in bar 15 and d2 in bar 17.

category imprint: Differences between sources

issues: GE revisions

b. 21

composition: Op. 42, Waltz in A♭ major

..

In FEG (→GE1) there are no accidentals in this bar. A comparison with analogous bars 13, 185 and 193 proves a mistake (probably of the engraver). The remaining sources added the necessary naturals raising D to D and d to d

category imprint: Differences between sources

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