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b. 67
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composition: Op. 27 No 2, Nocturne in D♭ major
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A does not have flats restoring a flat on the 3rd semiquaver of the 2nd half of the bar and a flat3 in the grace note before the 6th quaver of the bar. This is Chopin's obvious omission probably caused by the fact that in A the second part of the bar is written in a new line. In GE (→FE→EE) the mistake was corrected only partly, as category imprint: Differences between sources; Editorial revisions issues: Omission of current key accidentals , Annotations in FEFr |
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b. 68
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composition: Op. 27 No 2, Nocturne in D♭ major
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In A there is no category imprint: Differences between sources; Editorial revisions issues: Omissions to cancel alteration , GE revisions |
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b. 68
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composition: Op. 27 No 2, Nocturne in D♭ major
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In FE (→EE), a cautionary category imprint: Differences between sources issues: Cautionary accidentals , Authentic corrections of FE |
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b. 68
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composition: Op. 27 No 2, Nocturne in D♭ major
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The slurs visible in A over two-quaver motifs were omitted in GE (→FE→EE), probably due to the engraver's inattention. Cf bars 66-67. category imprint: Differences between sources issues: Inaccuracies in GE |
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b. 69
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composition: Op. 27 No 2, Nocturne in D♭ major
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The notation of the 1st note is not quite clear in A, as Chopin gave a single extending dot for two notes of the same pitch. However, the rhythmic values used in the second part of the bar make it easy for us to guess the composer's intention. The notation of the editions is even less clear, omitting the crotchet head (for the lower voice) that can be seen in A. Still, even in that version it is easy to figure out how to perform that fragment correctly. category imprint: Graphic ambiguousness; Differences between sources issues: Inaccuracies in GE |
was added before the grace note. The accidental before a flat was added in 
