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. 177-181

composition: Op. 16, Rondo in E♭ major

..

In the main text, we add cautionary accidentals before the 2nd semiquavers in bars 177, 179 and 181 – a  before c2, a  before b1 and a1.

category imprint: Editorial revisions

b. 177-180

composition: Op. 38, Ballade in F major

No slurs in A (→FE,EE)

Slurs in GC (→GE)

..

Three consecutive, approximately one-bar-long slurs were writtne into GC (→GE) almost certainly by Chopin. 

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections in GC

b. 177

composition: Op. 50 No. 3, Mazurka in C♯ minor

Accent in AI & AF (literal reading)

Accent in AI & AF (contextual interpretation→FEEE)

> in GE1

> above  in GE2

..

In both autographs the accent in this bar is shorter than the previous ones, although – particularly in AI – it is not entirely certain whether the difference is to be regarded as significant. Taking into account the different rhythmic value of the chord, we assume that the accent's length is correlated with it. Just like in the previous bars, the accent in AI and AF is closer to the L.H. part, which, according to us, is an inaccuracy. In the main text we reproduce the combined > marks, typical of Chopin, after GE1; the marks are an appropriate ending of the preceding crescendo. The separate accent in GE2 must be a revision.

category imprint: Graphic ambiguousness; Differences between sources; Editorial revisions

issues: Long accents , GE revisions

b. 177-180

composition: Op. 50 No. 3, Mazurka in C♯ minor

No sign in AI & AF (→FEEE)

in GE

..

In the main text we give the  hairpin after GE. A simultaneous use of a dynamic hairpin and a nominally equivalent verbal indication can often be found in Chopin's works (it is particularly the combination of  and cresc. that is very typical).

category imprint: Differences between sources

b. 177-179

composition: Op. 50 No. 3, Mazurka in C♯ minor

dim. - - in AF (→FEEE)

dimin. in GE

..

In the main text we give dimin. after GE. The absence of the dashes marking its range can be explained by the presence of a  hairpin in this edition.

category imprint: Differences between sources