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b. 8-9

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

Slur up to bar 9 in A

Slur only in bar 8 in GE (→FEEE)

..

While the slur of A ends in bar 9, it is not obvious whether it is actually supposed to reach the quaver. Therefore, the interpretation of GE (→FEEE) is equally justified.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccurate slurs in A

b. 8

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

..

In Atut (→FE), there is no  restoring d1. Chopin's patent mistake was corrected in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: Omissions to cancel alteration , Authentic corrections of FE

b. 8

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

Accent in Atut

No mark in FE (→GE,EE)

..

We consider the missing accent in FE (→GE,EE) to be the engraver's oversight.

category imprint: Differences between sources

issues: Errors in FE

b. 8

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

Fingering digit in Atut

Fingering in Atut, interpretation suggested by the editors

No fingering in FE (→GE,EE)

..

According to us, the distinct dash visible in Atut on the right-hand side of the last chord is a fingering digit (1), referring to the d1-esecond. Its omission in FE (→GE,EE) is probably a result of misunderstanding this mark (or a simple oversight). In the main text, we add a brace indicating the notes this digit applies to. 

category imprint: Differences between sources

issues: Errors in FE

b. 8

composition: Op. 31, Scherzo in B♭ minor

..

In GE1 the middle note of the 2nd chord in the R.H. is a d3 instead of c3. A comparison with the other sources and analogous bars proves that it is a mistake, corrected in GE2 (→GE3).

category imprint: Interpretations within context; Differences between sources

issues: Errors in GE , GE revisions