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


b. 5

composition: WN 37, Lento con gran espressione

No grace notes in A1

Grace notes in CJ, CK (→CB) & EL

..

According to us, the fact that the ending of the trill is not written out does not mean that Chopin envisioned it being performed differently while writing A1. It is rather an element that was skipped in the working notation, since Chopin regarded it as obvious.

category imprint: Differences between sources

b. 5

composition: WN 37, Lento con gran espressione

..

In A1 one can see that the 6th quaver was initially an f, like in b. 13 and 46.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Accompaniment changes

b. 5-6

composition: WN 37, Lento con gran espressione

Slur in A1, literal reading

Slur in CJ, literal reading

Slur in CK (→CB)

No slur in EL

..

In the main text we give the slur of CK (→CB), which is unquestionable in terms of image and music. According to us, it can also be considered an interpretation of the possibly inaccurate slurs of A1 and CJ. The slurring of A1 is generally rather of draft nature – careless and mostly short slurs appear only occasionally.
The absence of the slur in EL does not seem to be an oversight, since this edition is generally devoid of slurs and phrase marks – slurs that are not related to irregular groups are present only in b. 44 (arbitrary) and 47 (authentic). As a result, it could be regarded as a general editorial oversight.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccurate slurs in A , Inaccuracies in JC , Revisions in EL

b. 5-10

composition: Op. 28 No. 2, Prelude in A minor

..

In EE the L.H. slur in b. 5 – the first in a new line – begins from the 1st quaver, although the slur in the previous bar suggests continuation. The inaccuracy was most probably a side effect of the slur in b. 5-7 having been moved under the notes (though otherwise justified, since the notation of FE is illogical here: the slur in b. 1-4 is led under the notes, whereas its continuation in b. 5-7 – above). Inconsistent slurs between lines are also present in FC and GE – slurs in the bars opening a new line (b. 6 and 10 in FC and 5 and 9 in GE) run from the 1st quaver of the bar, contrary to the notation at the end of the preceding lines. (We do not reproduce the inaccuracies of FC in our transcriptions due to a different division into great staves.)

category imprint: Graphic ambiguousness; Differences between sources; Source & stylistic information

issues: Inaccuracies in GE , EE inaccuracies , Inaccuracies in FC , Uncertain slur continuation

b. 5-12

composition: Op. 28 No. 2, Prelude in A minor

..

As does not contain a single accidental in the R.H. part, in the entire piece (except for the final chords). In the case of the grace notes in b. 5 and 10, the missing sharps next to the grace notes seem to be obvious, although only on the assumption of a general compliance of the harmonic plan of the draft with the final version of the Prelude (accompaniment in these and adjacent bars is not even marked). In turn, the use of f1 instead of f1 in b. 8 and 11-12 unambiguously results from the written down L.H. part.

category imprint: Interpretations within context; Differences between sources; Source & stylistic information