Issues : Authentic corrections of FE

b. 12

composition: Op. 24 No. 3, Mazurka in A♭ major

Rest in the L.H. in AI

Sixth with tied a1 in A & GE2

Sixth in GE1

Tied a1 in FE (→EE1)

Sixth with tied a1 in EE3

category imprint: Differences between sources; Corrections & alterations

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

b. 26

composition: Op. 24 No. 3, Mazurka in A♭ major

Additional crotchet in A (→GE1)

No crotchet c2 in FE (→EE) and AI & GE2

category imprint: Differences between sources; Source & stylistic information

issues: GE revisions , Errors of A , Authentic corrections of FE

b. 33

composition: Op. 24 No. 3, Mazurka in A♭ major

No grace note in AI or A (→GE)

A grace note in FE (→EE)

..

The grace note appearing in FE (→EE) is certainly one of the changes made by Chopin when he was proofreading FE.

category imprint: Differences between sources

issues: Authentic corrections of FE

b. 33

composition: Op. 24 No. 3, Mazurka in A♭ major

No staccato sign in A (→GE1)

A wedge in AI and FE (→EE)

A dot in GE2

category imprint: Differences between sources; Corrections & alterations

issues: GE revisions , Authentic corrections of FE , Wedges

b. 36

composition: Op. 24 No. 3, Mazurka in A♭ major

No 1st ending  in AI

Sixth, tie to a1 in A

Sixth, additional slur in GE1

a1 tied to bar 13 in FE (→EE1)

Sixth, a1 tied to bar 13 in EE3

Sixth, revisions in GE2

category imprint: Graphic ambiguousness; Interpretations within context; Differences between sources; Corrections & alterations

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