Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 1-4

composition: Op. 10 No 8, Etude in F major

No pedalling in A

Pedalling in FE (→EE,GE1GE2)

GE3 (→GE4)

Our variant suggestion

..

The pedalling of these bars was added by Chopin during a proofreading of FE (→GE,EE). The editors have doubts whether the moment of the pedal's release in bar 4 was correctly marked (due to harmonic reasons). Therefore, we suggest to release the pedal slightly earlier. Most probably, the reviser of GE3 (→GE4) thought alike, moving the  mark at the end of bar 3.

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: GE revisions , Authentic corrections of FE

b. 1

composition: Op. 10 No 8, Etude in F major

No indication in A

in FE (→GE,EE)

..

Chopin added veloce while proofreading FE (→GE,EE). Cf. bar 8-13.

category imprint: Differences between sources

issues: No initial dynamic marking , Authentic corrections of FE

b. 1-8

composition: Op. 42, Waltz in A♭ major

No ties in FE0 (→FE,EE,GE1)

Ties in GE2 (→GE3)

..

GE2 (→GE3) arbitrarily added ties to the eminims. This kind of spelling conveys more distinctly the idea of a continuous 8-bar long trill four-bar long trill Chopin certainly had in mind. However, in the main text we retain the unequivocal notation of the sources. Both notations mean the same, as indicated by the different authentic spellings of the 4-bar long trill in the Waltz in D Op. 64, No 1.

category imprint: Differences between sources

issues: GE revisions

b. 1

composition: Op. 42, Waltz in A♭ major

Fingering in FED

No fingering in FE, GE & EE

..

In FED Chopin added the fingering for the trill.

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FED

b. 1

composition: Op. 42, Waltz in A♭ major

FE & GE

Cover title in FE

Title in EE

..

In the main text we give the title in the wording adopted in the headings of FE and GE. There are no doubts that such additions to the title as "grande" in FE and EE or "nouvelle" on the title page of FE were introduced for marketing purposes and on the initiative of the editors (sometimes perhaps also upon Chopin's consent). The Waltz published in Pacini's publishing house (FE) appeared as a part of a bigger album, "Cent-Et-Un" and was given a subsequent number – 68. As a result of this, the numbering of pages is continued: it starts with page 408 and ends with page 415. The title of Pacini's album was also used by the English editor, Wessel, undoubtedly for the purpose of advertising and trading, adding to the Waltz in EE the indication "Cent-et-Un." 

category imprint: Differences between sources

issues: EE revisions , Various titles , FE revisions