Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Slurs
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


Slurs

b. 75-76

composition: Op. 64 No 2, Waltz in C♯ minor

New slur from 3rd beat of bar 75 in AI, contextual interpretation

Continuous slur in A (→FEEE,GE1op,GE1no2GE2no2)

New slur from 3rd beat of bar 76 in GE2op (→GE3op)

..

In AI, the slur running from bar 73 ends over the 1st crotchet in bar 75, whereas a new slur begins from the 3rd beat of this bar. Leaving the 2nd crotchet outside of the phrases raises doubts – according to the musical sense, it is the first slur that is most probably too short, e.g. as a result of ink stoppage. Therefore, we interpret it as reaching e2.
The broken slur in bar 76 is an arbitrary revision of GE2op (→GE3op). 

category imprint: Differences between sources; Corrections & alterations

issues: Inaccurate slurs in A , GE revisions

b. 78

composition: Op. 64 No 2, Waltz in C♯ minor

Slur in AI

No sign in A (→FEGE,EE)

..

According to us, the little slur of AI, although not included in the version prepared for print, may be considered a specification of the final notation of the Waltz.

category imprint: Differences between sources

b. 80-81

composition: Op. 64 No 2, Waltz in C♯ minor

..

The slurring of AI, in the same way as in bars 65-72, is related to the regular four- and eight-bar structure of the phrases – one slur ends on the last quaver in bar 80, whereas the next one begins from the minim in bar 81. The slurring of A corresponds to the moved, more freely shaped phrases. In fact, the first slur does not go beyond bar 80, yet its shape clearly suggests leading it to a1 in bar 81. This is how it was interpreted in FE and in the remaining editions; these are also the slurs we give in the main text. Since both authentic slurrings are clearly linked to the rhythmic structure of the phrases, corresponding variants are included in the next note on rhythm.

category imprint: Graphic ambiguousness; Differences between sources; Corrections & alterations

issues: Inaccurate slurs in A

b. 83-84

composition: Op. 64 No 2, Waltz in C♯ minor

Continuous slur in AI

Separate slurs in A (→FEGE,EE)

..

Starting a new slur in bar 84 could have been related to a presence of an irregular group, since Chopin would generally instinctively encompass them with a separate slur. Therefore, the continuous slur of AI may be, according to us, considered an equal variant. 

category imprint: Differences between sources; Corrections & alterations

b. 84-85

composition: Op. 64 No 2, Waltz in C♯ minor

..

The slur over the three-note, chromatic progression of bass is only in the version prepared for print. In GE2no2, it was omitted, probably seeing in it a distorted tie of b.

category imprint: Differences between sources; Corrections & alterations

issues: GE revisions , Accompaniment changes