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


Pitch

b. 89

composition: Op. 30 No. 4, Mazurka in C# minor

No c1 in chords in FC (→GE)

Chords with c1 in FE (→EE)

..

A comparison with analogous bar 73 suggests that the version of FC (→GE) is erroneous. It is likely that Fontana did not notice both c1 notes in the chords due to inaccurate notation – in Chopin's autographs, it can sometimes be difficult to determine the presence of notes on ledger lines in the middle of chords. A correction to FC (in print or of the basis) cannot be ruled out either.

category imprint: Differences between sources

issues: Authentic corrections of FE , Errors of FC

b. 93-94

composition: Op. 30 No. 4, Mazurka in C# minor

..

In the main text we add cautionary accidentals – a  to f1 in bar 93 and a  to e1 in bar 94.

category imprint: Editorial revisions

b. 94

composition: Op. 30 No. 4, Mazurka in C# minor

..

FE (→EE) feature here an f1-g1 second, twice (as in the previous bar). The mistake was corrected in FED, perhaps by Chopin.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , Errors in FE , Annotations in FED , Errors repeated in EE

b. 99

composition: Op. 30 No. 4, Mazurka in C# minor

..

As in bar 3, in the main text we add a cautionary  to f1.

category imprint: Editorial revisions

b. 101

composition: Op. 30 No. 4, Mazurka in C# minor

C in FC (→GE)

Chord in FE (→EE)

..

In the main text we give the FC (→GE) version, entered by Chopin instead of the crossed-out chord, preserved in FE (→EE). Chopin's correction also included the addition of  and of the pedalling and the extension of the R.H. slur.

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FC