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. 139-140

composition: Op. 24 No. 4, Mazurka in B♭ minor

A phrasing slur in A (→GE2GE3)

No slur in GE1 (→FEEE)

..

The phrasing slur in bars 139-140 can only be found in A (→GE2GE3). The omission of that slur in GE1 (→FEEE) is an error probably resulting from the notation of A, in which the slur partially overlaps with the word sempre.

category imprint: Differences between sources

issues: Errors in GE

b. 139-140

composition: Op. 24 No. 4, Mazurka in B♭ minor

sempre rallentando in A

GE (→FEEE)

..

In our main text we give sempre rallentando, just like Chopin wrote it in A. In GE (→FEEE) the word sempre was placed earlier, at the beginning of the bar, and rallentando was replaced with the abbreviation rallent.

category imprint: Differences between sources

issues: Inaccuracies in GE

b. 139-142

composition: Op. 24 No. 4, Mazurka in B♭ minor

A probable interpretation of the accents in A (→GEFEEE)

An alternative reading of the accents in  A

..

Considering their shape and location, the accents in bars 139 and 142 in A must be viewed as short ones, and this is how they were interpreted in GE (→FEEE). This is also consistent with Chopin's notation used in similar situations in bars 120, 122 and 134. However, the marks are big enough to stir some doubt; Chopin might have wanted to have long accents here after all, as accented notes are sustained longer (cf. also bar 146).

category imprint: Graphic ambiguousness

issues: Long accents

b. 139-140

composition: Op. 39, Scherzo in C♯ minor

..

 FE erroneously has D sharp1 as the lower note in both bars. 

category imprint: Differences between sources; Source & stylistic information

issues: Errors in FE , Terzverschreibung error

b. 139

composition: Op. 39, Scherzo in C♯ minor

Long accents in GC & FE

Short accents in EE & GE

..

The accents in GC and FE seem to be long ones, and those in EE and GE - short ones. 

category imprint: Differences between sources

issues: Long accents