Issues : Errors resulting from corrections

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

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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

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

..

In A (→FC,FE) there is no accidental before the 2nd semiquaver in the last group. The patent mistake, probably caused by the corrections to the figuration in the 2nd half of the bar, was rectified in GE and EE.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Omissions to cancel alteration , Errors resulting from corrections , GE revisions , Errors of A , Errors repeated in FE