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. 82-84

composition: (Op. 4), Sonata in C minor, Mvt I

 in A, literal reading

 in GE (→FE,EE,IE)

Long accents suggested by the editors

..

It is unclear how the 4  marks present in A should be interpreted. A series of diminuendoes cannot be reconciled with the upcoming climax in bar 86, emphasised by the crescendo indication, which makes us doubt the accuracy of this standard interpretation. According to us, these marks are most probably long accents, the shape of which was not yet fully developed in the notation of young Chopin (their form in his later works is different). 

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , GE revisions

b. 82

composition: (Op. 4), Sonata in C minor, Mvt I

Wedge in A

No mark in GE (→FE,EE,IE)

..

The missing wedge in GE (→FE,EE,IE) must be an oversight by the engraver of GE, caused by the proximity of this mark to .

category imprint: Differences between sources

issues: Errors in GE

b. 82-86

composition: (Op. 4), Sonata in C minor, Mvt I

..

In the main text we do not include the cautionary  to c2 at the beginning of bar 82 added by GE (→FE,EE,IE). By contrast, we add naturals – necessary and cautionary – to c2 and c3 at the beginning of each half of the bar starting from the 2nd half of bar 82 to the 1st half of bar 86. The majority of them were also added by GE (→FE,EE,IE) – the only overlooked accidentals are: the ones in the 2nd half of bar 82, the 1st half of bar 83 and the accidental to c2 in the 2nd half of bar 83 (in FE the first one was added).

category imprint: Interpretations within context; Differences between sources; Editorial revisions

issues: Omissions to cancel alteration , GE revisions , FE revisions , Inaccuracies in A

b. 84-85

composition: (Op. 4), Sonata in C minor, Mvt I

No mark in A

Staccato dot in GE (→FE,EE,IE)

..

The missing staccato mark in A seems to be Chopin's inadvertence, as he overlooked the first chord, separated from the remaining ones by the treble clef and positioned much higher than the following ones. In the main text we include the addition introduced already by GE (→FE,EE,IE).

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

issues: GE revisions , Wedges , Inaccuracies in A

b. 84-85

composition: (Op. 4), Sonata in C minor, Mvt I

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , GE revisions , Inaccuracies in A