Issues : Errors in EE

b. 1-2

composition: Op. 28 No. 8, Prelude in F♯ minor

Long accents in A (→FC), contextual interpretation

4 short accents in FE

No marks in GE 

3 vertical accents in EE

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The long accents written in A (→FC) were not reproduced correctly in any of the editions. Both the shorter marks in FE and their omission in GE could have been related to a very dense and not always rational vertical text layout. The change of the accents' font in EE is a revision, typical of that edition, while the omission of the third mark – an oversight.
In the main text we also include – unlike FE – the accents in b. 2, marked in the manuscripts as a repetition of b. 1. This issue is generally ambiguous, e.g. tempo/character indications are certainly not to be repeated, but slurs and pedalling marks continued in the next bars should definitely be repeated. In the case of accents, both possibilities are actually equivalent in this context – the marks are given here as a pattern and should be applied also in the next bars, hence the number of explicitly given accents (4 or 8) is insignificant (cf., e.g. the accents at the beginning of the Prelude No. 6 in B Minor or the Etude in C Major, Op. 10 No. 1). 

category imprint: Interpretations within context; Differences between sources

issues: Long accents , EE revisions , Inaccuracies in FE , Errors in EE , Errors in GE

b. 9

composition: Op. 28 No. 8, Prelude in F♯ minor

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There is no  restoring f2 in the last group of demisemiquavers in EE1. It is most probably an oversight of the engraver, rectified in EE2.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in EE

b. 12

composition: Op. 28 No. 8, Prelude in F♯ minor

a in A (→FE,FCGE)

b in EE

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Nothing indicates the authenticity of the EE version – it is arguably the engraver's mistake.

category imprint: Differences between sources

issues: Errors in EE

b. 18

composition: Op. 28 No. 8, Prelude in F♯ minor

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The engraver of EE1 overlooked  restoring d2 on the 4th demisemiquaver on the 2nd beat. The accidental was added in EE2.

category imprint: Interpretations within context; Differences between sources

issues: EE revisions , Errors in EE