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b. 70

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

Long accent in A

 in GE (→FE)

 in EE

..

We consider the sign written in A to be a long accent, although preceding it with a short  sign in bar 69 could suggest a  hairpin (however, in this context performance difference would be minimal). The sign was reproduced in all editions as diminuendo; moreover, in EE it was preceded with , most probably repeated after analogous bar 78.

category imprint: Differences between sources

issues: EE revisions , Inaccuracies in GE

b. 70

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

Slashed grace note in A

Grace note without slash in GE1

Medium-size crotchet in FE

Normal-size crotchet in EE

Grace note without slash in GE2

..

It is a very instructive example of how the accumulation of minor inaccuracies of subsequent editions transformed the acciaccatura in A into a regular crotchet in EE (the crotchet in FE is printed in a font of intermediary size, used in the orchestral part). All changes concerning the anote are most probably erroneous, whereas placing it over the rest in GE1 seems to have been forced by lack of space.
The fingering written in FED in the next two bars suggests that the fragment was developed in more details during lessons with Chopin. Therefore, one can ponder why the composer did not react to the erroneous notation of FED. According to us, performing the aas a crotchet could have been accepted by Chopin when phrased accordingly. 

category imprint: Differences between sources

issues: EE revisions , Inaccuracies in GE , Inaccuracies in FE , GE revisions

b. 71

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

Fingering digits written into FED

No teaching fingering

Digits under arc suggested by the editors

..

The digits written in FED certainly mark the fingering of the entire trill, hence in the main text we add a little slur above them, generally used in such situations, also by Chopin. It is possible that the sign added under the digits, resembling a tr abbreviation, includes a similar suggestion, yet it is difficult to decipher.

category imprint: Differences between sources; Editorial revisions

issues: Annotations in teaching copies , Annotations in FED

b. 72

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

Fingering written into FED

No teaching fingering

..

Both ones are most probably added by Chopin's hand.

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FED

b. 73

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

..

FE has an erroneous finstead of epresent in A (→GE) as the 3rd note of the passage in the L.H. The patent mistake was rectified in EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE