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b. 320

composition: Op. 2, Variations, complete

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The sources do not include an accidental over the mordent. In this harmonic context, the use of b is obvious, hence in the main text we add a  over the ornament. Chopin hardly ever put accidentals over trills or mordents in such situations, generally leaving the task of finding the right sound of the auxiliary note to the performer's imagination.

category imprint: Interpretations within context; Editorial revisions

issues: Omissions to cancel alteration , Inaccuracies in A

b. 321

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

..

In A (→GE) there are no accidentals in the last group of semiquavers. In the proofreading of FE (→EE) two flats were added, probably indicated by Chopin, a cautionary before A and a necessary one before G.

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Errors in GE , Cautionary accidentals , Authentic corrections of FE , Inaccuracies in A

b. 321-322

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

Two-bar slur in A, interpretation suggested by the editors

2 one-bar slurs in A (possible interpretation→GEFEEE)

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In A bar 321 is the last one on the page, which became the cause of the ambiguous notation of the slurs in the R.H. – the slur in bar 322 (on a new page) suggests a continuation from the previous bar, which is not confirmed by the ending of the slur in bar 321. In the main text we assume that Chopin's intention was a two-bar slur, yet the version of the editions, with two one-bar slurs, can also be considered a justified interpretation of A.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccurate slurs in A

b. 321

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

Slur from 1st quaver in FE (→EE,GE1GE2)

No slur in GE3

Slur from 2nd quaver suggested by the editors

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The slur of FE (→EE,GE1GE2) must be inaccurate, perhaps as a result of an erroneous interpretation of [A] – Chopin, while writing a slur over the accents of the top voice, obvious to him, could have not noticed that the 1st quaver of the bar, placed much lower, turned up under the slur. In GE3, the slur was omitted, perhaps taking into account its inadequacy to the natural phrasing resulting from the texture. 

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 321

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

Seventh in FE

Octave in GE & EE

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In the main text, we give the unquestionable, as far as the sources and music are concerned, version of FE. The octave in GE and EE may be either a mistake or a revision; at the same time, in each of these editions, the reason could have been different. In each case, the fact that the revisers did not take into account the analogy with the two previous bars is puzzling.

category imprint: Differences between sources

issues: Errors in EE , Errors in GE