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Rhythm

b. 44-45

composition: Op. 27 No 2, Nocturne in D♭ major

Crotchet stems in A

GE1 (→FEEE)

..

In A, Chopin marked with extra crotchet stems the progression c sharp-d-e flat, evidently in connection with the span of the semiquaver figures and the actual possibility of sustaining the marked notes with the fingers. In GE1 (→FEEEc at the beginning was mistakenly sustained instead of at the end of bar 44. In GE2 the omitted stem for d was added.

category imprint: Differences between sources

issues: Inaccuracies in GE

b. 51

composition: Op. 27 No 2, Nocturne in D♭ major

A synchronization mark in FES

No mark entered

..

The marks entered in FES (a line and a cross) point to the moment of beginning of the run that ends the trill.

category imprint: Differences between sources

issues: Annotations in teaching copies , Synchronization markings , Annotations in FES

b. 54

composition: Op. 27 No 2, Nocturne in D♭ major

..

In the figure on the 4th quaver of the bar FE (→EE) has erroneously a semiquaver rest instead of a demisemiquaver rest.

category imprint: Differences between sources

issues: Errors in FE

b. 61

composition: Op. 27 No 2, Nocturne in D♭ major

..

In GE, the four last notes of the R.H.: e flat1-f1-e flat1-d flat1, are placed - against their rhythmic values - precisely above the four last semiquavers of the L.H. (e flat-c1-g flat-A flat). FE and EE have those notes placed correctly. 

category imprint: Source & stylistic information

issues: Inaccuracies in GE

b. 63-65

composition: Op. 27 No 2, Nocturne in D♭ major

Sustaining of d flat only in bar 64 in A (→GE)

Sustaining begins in bar 63 in FE (→EE)

..

In A (→GE) the sustaining of notes d flat ​with the hand is marked only in bar 64. When proofing FE (→EE), Chopin decided to extend that notation to the 2nd half of bar 63 and the entire bar 65. Cf. bars 67-69.

category imprint: Differences between sources

issues: Accompaniment changes , Authentic corrections of FE