Issues : Errors of A

b. 6

composition: Op. 28 No. 21, Prelude in B♭ major

..

The sources do not contain an accidental before the top note of the third on the 4th quaver in the bar, as a result of which it should be interpreted as e-g. It must be Chopin's inadvertence – the characteristic f(-d1) – e-g e-a sequence appears 10 times throughout the Prelude (excluding this place), always with g, even when it is preceded by a g-e sixth (in b. 41). Analogous sequences are to be found on a number of occasions also in other harmonic contexts, always with a minor third on the second quaver. Therefore, Chopin was fully entitled to consider the  to be obvious in this place.

category imprint: Interpretations within context; Editorial revisions

issues: Omissions to cancel alteration , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 6

composition: Op. 28 No. 13, Prelude in F♯ major

..

The  restoring g in the 2nd half of the bar is absent in all the sources. It is one of Chopin's most common mistakes. The g note is so obvious that EE did not notice the mistake in spite of the cautionary  having been added before g1 in the 2nd R.H. chord.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Omissions to cancel alteration , Errors of A , Errors repeated in FE , Errors repeated in EE

b. 7

composition: Op. 10 No 2, Etude in A minor

..

In Ap there is no  returning a2 at the 9th semiquaver of the bar. It must have been Chopin's oversight. 

category imprint: Differences between sources

issues: Omissions to cancel alteration , Errors of A

b. 7

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

..

AT, AW and CDP do not have here the  before the 5th (e2) quaver. In AW and CDP, the inaccuracy is also in bar 26, while in CDP also in bar 57. 

category imprint: Interpretations within context; Differences between sources

issues: Accidentals in different octaves , Errors of A , Errors of CDP

b. 7-8

composition: Op. 25 No 8, Etude in D♭ major

..

In A, FE and EE1 there is no cancellation of a few previously raised notes in chromatic passages:

  • in A and FE there is no  returning f2 at the end of bar 7 and two flats in bar 8 – returning a2 in the 8th sixth and e3 in the 10th sixth;
  • EE is missing the above three and flats returning g2 in the 10th sixth and d3 in the 12th sixth in bar 8.

The remaining editions introduced additions to these patent oversights (some of all):

  • GE1 added the  returning a2 in the 8th sixth in bar 8, while GE2 (→GE3) also the rest of the overlooked signs;
  • EE2 (→EE3) added the flats returning a2 in the 8th sixth, g2 in the 10th sixth and d3 in the 12th sixth in bar 8, which resulted in the same text as in GE1.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in FE , Errors in EE , Omissions to cancel alteration , Errors in GE , GE revisions , Errors of A