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b. 63

composition: Op. 25 No 2, Etude in F minor

..

In AW the first crotchet was originally an a2, which Chopin changed to b2. At the same time, the consequences of the change were not checked – there was still a  before the 2nd quaver (a2), superfluous in the new situation, while b2 was not returned on the 6th quaver. Preparing the piece for print, the composer returned to the initial notation.

category imprint: Differences between sources; Corrections & alterations

issues: Chopin's hesitations , Enharmonic corrections

b. 67

composition: Op. 25 No 2, Etude in F minor

Triplets in AW, CDP, GC (→GE), FE & EE

Run written into FED

..

The visible in FED pencilled entry of Chopin (8 3a and a line over the descending scale, creating a kind of an octave sign) constitutes, according to us, a variant in which the indicated scale figuration fragment is to be extended by an octave – ottava terza, as this entry is to be deciphered, probably signalises that the sequence of quavers, in the printed version filling generally the two-line octave, is supposed to include the three-line octave too). Chopin would often write this kind of scale or passage figuration extensions in pupils' copies, e.g., in the Concerto in E Op. 11, mvt II, bar 58-59Nocturne in F minor, Op. 48 No. 2, bars 113-114, Nocturne in E major, Op. 62 No. 2, bars 68-69, or Waltz in A major, Op. 42, bars 240-244.

category imprint: Interpretations within context; Differences between sources

issues: Annotations in teaching copies , Annotations in FED , Authentic post-publication changes and variants