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Rhythm

b. 48

composition: Op. 27 No 1, Nocturne in C# minor

R.H. quaver over the 6th L.H. note in GE (→FE)

Correct notation of the rhythm in EE

..

Just like in bars 29-36, in bar 48 of GE the rhythm  is irregularly presented against the triplets. FE also contains such notation, despite the fact that in bars 29-36 the identical rhythm was presented regularly. A similar situation also occurs in the following bars.

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Dotted rhythms and triplets

b. 49

composition: Op. 27 No 1, Nocturne in C# minor

GE (→FEEE): semiquaver after the last note of the triplet

Notation in keeping with the usual Chopin's understanding of such figures

..
In bar 49 in GE (→FEEE) the semiquaver of the double dotted rhythm in the right hand part was moved beyond the third note of the second triplet in the accompaniment. This inauthentic notation, misleading for the performer, was also used in bars 37-42 and 44-45.
 
See the chapter devoted to that topic in: Jan Ekier, Introduction to the National Edition, Editorial Issues.
 

category imprint: Interpretations within context; Differences between sources

issues: GE revisions , Dotted rhythms and triplets

b. 50

composition: Op. 27 No 1, Nocturne in C# minor

R.H. quaver over the 6th L.H. note in GE (→FE)

Regular rhythmic notation in EE

..

In GE (→FE) notes of the R.H. rhythm are distributed in such a way that the quaver is aligned with the 6th L.H. note. In the editors' opinion, this probably does not reflect the notation of [A], and has no impact on the performance. In the main text, we apply the regular rhythmic notation, so did EE.

category imprint: Interpretations within context; Differences between sources

issues: Inaccuracies in GE , Dotted rhythms and triplets

b. 51

composition: Op. 27 No 1, Nocturne in C# minor

GE (→FEEE): the semiquaver after the last note of the triplet

Notation in keeping with Chopin's understanding of this figure

..

In bar 51 of GE (→FEEE) the semiquaver in  was moved beyond the 3rd note of the triplet in the accompaniment. This inauthentic, misleading notation was used throughout the Nocturne.

category imprint: Interpretations within context

issues: GE revisions , Dotted rhythms and triplets

b. 51

composition: Op. 27 No 1, Nocturne in C# minor

..

The minim e2 is prolonged in FE. This is probably a mistake although Chopin sometimes used this kind of notation (cf. e.g. Impromptu in A Op. 29, bar 74). However, in this case sustaining e2 longer only complicates the notation with no impact on the voice-leading logic or the sound (pedalling). EE amended the FE notation, certainly a reviser's work. In the main text we adopt the GE version which raises no doubts.

category imprint: Interpretations within context; Differences between sources