Issues : Errors of FC

b. 22-23

composition: Op. 28 No. 16, Prelude in B♭ minor

b1 & b2 in A & FE2 (→EE)

b1 & b2 in FC (→GE)

b1 & b2 in FE1

..

Before the 7th semiquaver in A there was initially a  (cautionary due to B(1) in the L.H.), which Chopin turned to a . Fontana and the engraver of FE1 misinterpreted that correction by considering it a deletion of the accidental, hence FC (→GE) and FE1 does not contain any accidental before that note, which gives b1. When the figure is repeated an octave higher (at the beginning of b. 23) in FC (→GE), there is also no , which can be explained by an oversight (it would be a puzzling coincidence!) or by a revision, introduced in the belief that it is also here that the alleged crossing-out from b. 22 should be taken into account.
In both places, the naturals visible over the notes were added in FC by H. Scholtz probably in the 1870s.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Corrections in A , Errors resulting from corrections , FE revisions , Errors of FC

b. 29-30

composition: Op. 28 No. 16, Prelude in B♭ minor

2 slurs in A

No slurs in FC (→GE) & EE
 

Slur in bar 29 in FE

..

In the main text we give the two L.H. slurs beginning in the 2nd half of b. 29 after A. None of the remaining sources reproduced them faultlessly.

category imprint: Differences between sources

issues: Errors in FE , Errors in EE , Errors of FC

b. 32

composition: Op. 28 No. 16, Prelude in B♭ minor

L.H. slur in A

No slur in FC (→GE) & FE (→EE)

..

It is difficult to say what the reason was that the slur over the pair of the L.H. chords was overlooked both in FC (→GE) and FE (→EE).

category imprint: Differences between sources

issues: Errors in FE , Errors of FC

b. 40

composition: Op. 28 No. 16, Prelude in B♭ minor

Staccato dot in A

No mark in FC (→GE) & FE (→EE)

..

The staccato dot visible in A over the chord was ignored both in FC (→GE) and FE (→EE).

category imprint: Differences between sources

issues: Errors in FE , Errors of FC

b. 40-41

composition: Op. 28 No. 16, Prelude in B♭ minor

in A (→FEEE)

No sign in FC (→GE)

..

The overlooked  mark in FC (→GE) is one of a few oversights of Fontana in the ending of the Prelude.

category imprint: Differences between sources

issues: Errors of FC