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. 648

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

L.H.  ​​​​​​​in FE (→GE1GE2)

​​​​​​​for both hands in EE

L.H. short accent in GE3

Long accent for both hands suggested by the editors

..

According to us, the placement of the  mark, which we interpret as a long accent, is probably inaccurate in FE – admittedly, Chopin would often use a ​​​​​​​ combination, yet both indications would be then written next to each other and on the same level. In this case, the accent was supposedly to concern both parts and not the L.H. only, which is suggested by the notation of FE (→GE). A short accent in GE3 is a result of interpretation of the discussed mark, performed in the light of bar 646.

category imprint: Differences between sources; Editorial revisions

issues: Long accents , Placement of markings , GE revisions , EE inaccuracies

b. 649

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

​​​​​​​in FE (→EE)

​​​​​​​ in GE

..

Both the change of indication from  to  and omission of the accent are most probably mistakes of the engraver of GE, although it is easier to imagine an overlooked 'z' in ​​​​​​​ at the time of reading the autograph, hence in FE. Therefore, it is possible that one or both inaccuracies were initially present in FE, in which, however, Chopin corrected them in the last phase of proofreading.

category imprint: Differences between sources

issues: Errors in GE , fz – f

b. 649

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

L.H.  ​​​​​​​in FE (→EE)

No marking in GE

Long accent for both hands suggested by the editors

..

As a result of comparison of the indications of FE in bar 646 and 648-650, we interpret the mark in this bar as a long accent, referring to both hands. The absence of the mark in GE is most probably an oversight of the engraver.

category imprint: Differences between sources; Editorial revisions

issues: Long accents , Placement of markings , Errors in GE

b. 649

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

Fingering written into FEH

No teaching fingering

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FEH

b. 649-650

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

..

In FE, there are no sharps raising g2 to g2 (in both bars) and c3 to c​​​​​​​3 (in bar 649). In GE1 (→GE2), the first two were added; the notation in EE and GE3 is fully correct.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Accidentals in different octaves , Inaccuracies in FE , GE revisions , Omission of current key accidentals