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b. 282

composition: Op. 42, Waltz in A♭ major

a2-c3 in FE (→GE1,EE)

a2 in GE2 (→GE3)

..

The version of GE2 (→GE3) is most probably revised – c3 on the 4th quaver was removed in order to homogenise the bar with the previous one. The version could have been intended by Chopin if we were to admit that the third in this place is an error of the engraver and that Chopin did not pay attention to it neither in FEG nor in the proofreading of FE and base text to EE and the pupils' copies. 

category imprint: Differences between sources

issues: GE revisions

b. 282-283

composition: Op. 21, Concerto in F minor, Mvt I

Slurs in A & GE2

Slurs in GE1 (→FEEE)

..

The well thought out moment of division of the slur was very carefully marked in A (there are visible traces of a correction). In spite of this, in GE1 (→FEEE) the slurs were adjusted to bars.

category imprint: Differences between sources; Corrections & alterations

issues: Corrections in A , Errors in GE , GE revisions

b. 282-283

composition: Op. 21, Concerto in F minor, Mvt I

e tied in A & GE2

e repeated in GE1 (→FEEE)

..

The change of the tie of e to an e-b motivic slur is almost certainly a mistake of GE1 (→FEEE), corrected in GE2.

category imprint: Differences between sources

issues: Errors in GE , GE revisions

b. 282

composition: Op. 21, Concerto in F minor, Mvt III

..

FE1 has an a1-cthird on the 1st quaver. It is a perfect example of an unfinished proofreading, where the correct note was printed without having removed the erroneous one. The mistake was corrected in FE2 (→EE).

category imprint: Differences between sources

issues: EE revisions , Errors in FE , Terzverschreibung error , Partial corrections

b. 282

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

No teaching fingering

Fingering written into FEH

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FEH