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Op. 27 No 2, Nocturne in D♭ major

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b. 52-53

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

Slurs in A (→GE)

A prolonged slur in FE (→EE)

The editors' suggestion - without the 'triplet' slur
..

In A (→GE) the articulation-phrasing slur embraces only bar 52. When correcting FE (→EE), Chopin extended it to reach the half of bar 53 and we give that longer slur in the main text.

There is also a slur above the demisemiquaver triplet in the sources. The addition of a long phrasing slur in the proofing of FE reduced the 'triplet' slur to a purely formal function (cf. General editorial principles p. 16), so we remove it from the main text.

category imprint: Differences between sources; Editorial revisions; Corrections & alterations

issues: Authentic corrections of FE , Triplet slurs

b. 53

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

Fingering in  FED

No teaching fingering provided
..

category imprint: Differences between sources

issues: Annotations in teaching copies , Annotations in FED

b. 53

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

A more probable interpretation of the accents in A 

Accents in GE

Accents in  FE (→EE)
..

It is not clear whether the accent over b flat1 in A is a long or a short one. We tend to favour the latter option, contradictory to the manner in which it was interpreted in GE (→FE→EE).

The second accent in that bar, under b flat2, is clearly a long one in A and in a sense also in GE, in which it has the form of a short diminuendo. In FE (→EE) nobody paid attention to the length of those signs and both accents were given as ordinary short ones. 

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents

b. 54

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

A long accent in A

Hairpins   in GE (→FE→EE)
..

A long accent from A was interpreted in GE (→FE→EE) as half-bar long hairpins  . The comparison with the analogous bar 56 resolves any possible doubts as to the meaning of that sign. 

category imprint: Differences between sources

issues: Long accents , Inaccuracies in GE , Scope of dynamic hairpins

b. 54

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

The slur in  A

GE (→FE→EE)
..

In A, the slur clearly begins over the second quaver of the bar. The earlier beginning of that slur in GE (→FE→EE) is probably a result of a routine reading of the extent of that sign by the engraver of GE1. However, the fact that no corrections were made in FE or the teaching copies may point to Chopin's acceptance of the longer slur. 

category imprint: Differences between sources

issues: Inaccuracies in GE