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b. 138

composition: Op. 42, Waltz in A♭ major

..

In FE there is no  returning a on the penultimate quaver. Chopin overlooked this error also in FEG, yet in GE1 (→GE2GE3) the correct revision was performed. The necessary sign is also in EE.

category imprint: Differences between sources

issues: Errors in FE , GE revisions

b. 149

composition: Op. 42, Waltz in A♭ major

 
 
..

In GE2 (→GE3) the c1 from the chord on the 2nd crotchet was arbitrarily removed, certainly in order to homogenise it with analogous bar 157. We preserve the varied sound in these bars in accordance with FE0 (→FE,EE,FEGGE1).

category imprint: Differences between sources

issues: GE revisions

b. 160

composition: Op. 42, Waltz in A♭ major

..

In FE0 (→FE,FEG) there are no naturals raising d1 to d1 on the 2nd crotchet in the L.H. and d2 to d2 in the R.H. It is undoubtedly Chopin's mistake  – cf.  in the next bar. The necessary signs were added in EE and GE, they were also added in pencil in FED (only before d1) and in FEJ (both).

category imprint: Differences between sources

issues: Annotations in teaching copies , EE revisions , Errors in FE , Annotations in FED , GE revisions , Annotations in FEJ

b. 160

composition: Op. 42, Waltz in A♭ major

..

The natural before b1 in the chord on the 3rd beat of the bar is only in GE2 (→GE3). In this context the need to use this sign is an issue of convention.

category imprint: Differences between sources

issues: GE revisions

b. 164

composition: Op. 42, Waltz in A♭ major

c1-e1-a1 in FE1

c1-e1-g1 in FE0 (→GE,EE)

..

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