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. 171

composition: Op. 21, Concerto in F minor, Mvt I

..

In the main text we add a cautionary  before d1.

category imprint: Editorial revisions

b. 171

composition: Op. 21, Concerto in F minor, Mvt I

End of slur in A (→GE)

End of slur in FE (→EE)

..

The longer slur in FE (→EE) is a result of a proofreading – one can see traces of deletion of the slur repeated from GE1. This kind of change to FE could have been introduced only by Chopin.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 171

composition: Op. 21, Concerto in F minor, Mvt I

Staccato dot in A & GE2

No mark in GE1 (→FEEE)

..

The staccato dot over the last chord in GE1 (→FEEE) was probably overlooked. However, in the proofreading of FE Chopin changed the concept of phrasing and articulation of the 2nd half of the bar, by embracing the chord with a slur and at the same time authorising the missing staccato. In the main text we adopt the changed version. GE2 returned the dot after A.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 172

composition: Op. 21, Concerto in F minor, Mvt I

Wedge in A

No mark in GE1

Dot in FE (→EE) & GE2

..

The distinct wedge over the 1st chord written in A was overlooked in GE1. When proofreading FE (→EE), Chopin restored the staccato sign, yet this time in the form of a dot. The version, being the latest, should be adopted in the main text, if it were not for doubts whether the sign written by Chopin was reproduced correctly. Errors in interpretation of Chopin wedges would be very frequent in first editions – cf. e.g. the Etude in E major, Op. 10 No. 11, bars 2-14 or 16-23. Therefore, we leave the wedge as the undoubtedly authentic and generally compliant with the nature of the Chopin proofreading, whose main objective was to restore the overlooked staccato sign.
GE2 added a dot here, same as in the previous bar

category imprint: Differences between sources; Corrections & alterations

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

b. 172

composition: Op. 21, Concerto in F minor, Mvt I

..

In A there are no naturals raising d1(2) to d1(2) and b to b in the L.H. All three necessary signs were added already in GE1 (→FEEE, →GE2).

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A