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


Slurs

b. 49

composition: Op. 11, Concerto in E minor, Mvt II

Slur in FE (→EE) & GE3

No slur in GE1 (→GE2)

..

The missing slur probably stems from inattention of the engraver of GE1, although it cannot be excluded that Chopin added this slur only in the last proofreading of FE (→EE).

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 50

composition: Op. 11, Concerto in E minor, Mvt II

Slur from b2 in FE (probable reading→EE)

Slur from d2 in FE (possible reading→GE)

..

In FE, the beginning of the slur is written in such a way that it remains unclear whether it runs from the first or the second demisemiquaver. According to us, the first possibility is more likely, hence we adopt it in the main text. Cf. a similar problem in the next bar.

category imprint: Graphic ambiguousness; Differences between sources

b. 51

composition: Op. 11, Concerto in E minor, Mvt II

No slurs in FE (→GE1GE2)

3-note slurs in EE

4-note slurs in GE3

..

In this context, the missing slurs must be considered an inaccuracy; therefore, in the main text we add them after the previous bar and analogous bar 100. Such additions were introduced already in GE3. In turn, the slurs added in EE, unjustified by the accompaniment structure, cannot be authentic.

category imprint: Differences between sources; Editorial revisions

issues: EE revisions , GE revisions

b. 51

composition: Op. 11, Concerto in E minor, Mvt II

Slur from d2 in FE (probable reading→GE1GE2)

Slur from b2 in FE (possible reading→EE)

No slur in GE3

..

Just like in bar 50, the beginning of the slur in FE may be interpreted in two ways: falling over the first or the second demisemiquaver. However, in this case the placement of the mark rather suggests the latter.
In GE3, the slur was omitted, most probably by accident – see the note on the subsequent slurs. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Errors in GE

b. 51

composition: Op. 11, Concerto in E minor, Mvt II

Slurs in FE (→EE,GE1GE2)

No slurs in GE3

..

GE3 does not have any slurs in this bar, which must be a mistake (we discuss the first slur separately). 

category imprint: Differences between sources

issues: Errors in GE