Issues : Dotted or even rhythm

b. 67

composition: Op. 45, Prelude in C♯ minor

Rhythm and slur in FE1

FE2 and EE1

Rhythm & slurs in EE2

Additional combination of rhythm and slur

..

The rhythm of FE (→EE) is probably earlier or was even left inadvertently at the time of possible corrections in [A1]. Due to that, we give priority to the version of GE (also introduced into EE2). A similar difference also occurs in bar 71.
In both sources based directly on autographs – FE1 and GE – the slur in that bar continues the slur from bar 66. The remaining versions of slurring are, according to us, not authentic. An additional combination fully enables to independently treat the rhythm and slurring here.

category imprint: Differences between sources

issues: Main-line changes , Dotted or even rhythm

b. 68

composition: Op. 35, Sonata in B♭ minor, Mvt III

Quavers in GC & FE (→EE)

Dotted rhythm in GE

..

Same as in bar 14, the authenticity of the dotted rhythm in GE is questionable.

category imprint: Differences between sources

issues: GE revisions , Dotted or even rhythm

b. 70

composition: Op. 63 No. 1, Mazurka in B major

Quaver g in AI

Rest & semiquaver g in FE (→GE,EE)

..

One of a few such differences between earlier AI and the published version – cf. in this section of the Mazurka bars 72, 74 and 81.

category imprint: Differences between sources; Corrections & alterations

issues: Dotted or even rhythm

b. 71

composition: Op. 45, Prelude in C♯ minor

Rhythm in FE (→EE1)

GE and EE2

..

In the main text we adopt the probably later rhythm of GE and EE2.

category imprint: Differences between sources

issues: Dotted or even rhythm

b. 71

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

Crotchets in As & AI

Dotted rhythm in A (→FEGE,EE)

..

Replacing even values with a dotted rhythm is one of the most frequently encountered rhythmic diversifications in Chopin's music. All notes in the R.H. are placed in A exactly above the crotchets in the L.H., which may mean that Chopin introduced this diversification already after having written the earlier version, as a correction (similarly, in bar 77).

category imprint: Differences between sources; Corrections & alterations

issues: Dotted or even rhythm