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b. 135

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

Crotchet e in A (→GE)

Dotted minim in FE (→EE)

..

Extending the value of e is undoubtedly a result of the Chopin proofreading of FE (→EE).

category imprint: Differences between sources; Corrections & alterations

issues: Accompaniment changes , Authentic corrections of FE

b. 135-136

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

Slur in A (possible reading→GEFE) & EE2 (→EE3)

No slur in EE1

Slur in A, reading suggested by the editors

..

The range and placement of the slur in A are unclear. According to us, it may refer to the quavers in the top voice, as it was interpreted in the editions (except for EE1, in which the slur was overlooked) but also to the crotchet of the bottom voice, leading to the b minim in the next bar. Analysing also the notation of an analogous fragment of the recapitulation (bars 283-284) as well as a few other aspects of notation and structure of music, we decided to adopt the second possibility to the main text.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccurate slurs in A

b. 135

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

Long accent between in A

Short L.H. accent in GE

No mark in FE (→EE)

Long R.H. accent suggested by the editors

..

The long accent in A is written in the middle between the staves, so it is unknown to which hand it should be assigned. A comparison with analogous bar 283 proves that Chopin most probably meant accenting the R.H. In GE it was assigned to the L.H. (as a short accent) and in FE (→EE) it was overlooked.

category imprint: Differences between sources

issues: Long accents , Errors in FE , Inaccuracies in GE

b. 135

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

..

It is difficult to say what the ccrotchet (grace note?), written in A over the d1-esecond at the beginning of the bar, means. It is not corresponded by any note in Morch, it was not included in the editions either. In this situation, we regard this inexplicable, from the point of view of melody and harmony, note as a mistake.
Perhaps it was to be an e3, sustained from the previous bar, in which the e3 minim is provided with an additional curved line. However, the curved line is not combined with the discussed note, hence we do not include this possibility, doubly hypothetical, in our system.  

category imprint: Source & stylistic information

issues: Errors of A

b. 135

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

e in Atut

E-e in FE (→GE,EE)

..

Chopin added the bottom note of the octave in the L.H. in the proofreading of FE (→GE,EE).

category imprint: Differences between sources; Corrections & alterations

issues: Authentic corrections of FE