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. 24

composition: Op. 28 No. 16, Prelude in B♭ minor

e-c1-g1 in A (→FC,FEEE)

g-g1 in GE

..

The version of GE must be erroneous, although it is difficult to say what could have misled the engraver.

category imprint: Differences between sources

issues: Errors in GE

b. 24

composition: Op. 28 No. 16, Prelude in B♭ minor

..

In the main text we add a cautionary  before g3. The accidental was already added in EE.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions

b. 25

composition: Op. 28 No. 16, Prelude in B♭ minor

a2 in A (→FE,FCGE)

f2 in EE

..

The EE version is certainly a mistake.

category imprint: Differences between sources

issues: Errors in EE , Terzverschreibung error

b. 26-27

composition: Op. 28 No. 16, Prelude in B♭ minor

..

In A (→FE1,FCGE1) there are no flats restoring e2 in these bars, which is Chopin's patent inadvertence. The accidentals were added in EE (both), FE2 (only in b. 26) and GE2 (only in b. 27).

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Omissions to cancel alteration , GE revisions , Errors of A , FE revisions , Errors repeated in GE , Errors repeated in FE

b. 27

composition: Op. 28 No. 16, Prelude in B♭ minor

..

In A one can see a crossed-out  at the pitch of A before the G quaver. It means that, according to us, Chopin wanted to write that note as A at first.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Enharmonic corrections