Issues : Terzverschreibung error

b. 19

composition: Op. 29, Impromptu in A♭ major

 
 
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In GE1 the 9th quaver is g, which is certainly a mistake, a typical mistake of "thirds". In GE2 (→GE3GE4) the correct text was reinstated. In EE there is a cautionary flat before the appropriate note (e). 

category imprint: Differences between sources

issues: EE revisions , Errors in GE , Terzverschreibung error

b. 19

composition: WN 55, Waltz in F minor

 
 
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The incidental d1 note in CC - compared to the b note in the remaining sources - may be considered an oversight of the copyist, one of the examples of the Terzverschreibung error.

 

category imprint: Differences between sources

issues: Terzverschreibung error

b. 20

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

c2 in chord in A, FE (→EE) & GE2

a1 in chord in GE1

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The version of GE1 is certainly erroneous: it is most probably a revised Terzverschreibung error, by adding a . Chopin restored the chord with c2, written in A, in a proofreading of FE (→EE). At the time of executing this proofreading, a superfluous  was moved together with the note head.  

category imprint: Differences between sources

issues: Errors in GE , Terzverschreibung error , GE revisions , Authentic corrections of FE

b. 21

composition: Op. 28 No. 19, Prelude in E♭ major

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The 5th R.H. quaver in GE1 is an erroneous a1 instead of f1. The mistake was rectified in GE2 (→GE3).

category imprint: Interpretations within context; Differences between sources

issues: Errors in GE , Terzverschreibung error , GE revisions

b. 21

composition: Op. 28 No. 17, Prelude in A♭ major

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In GE the top notes of the 3rd and 4th quavers were misplaced, i.e. a third too low (3rd quaver, g-b-d1) or too high (4th quaver, g-f1-a1 when interpreted literally). In the manuscripts and GE those notes are placed on the top stave, among the R.H. quavers, which significantly hampers their interpretation.

category imprint: Interpretations within context; Differences between sources

issues: Errors in GE , Terzverschreibung error