Issues : Errors repeated in FE

b. 7

composition: Op. 28 No. 10, Prelude in C♯ minor

Dotted minim in sources

Minim suggested by the editors

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Holding the g note to the very end of the bar, as it was given in A and in all the remaining sources, is inconvenient from the pianistic point of view and practically imperceptible against the trill performed with pedal in the bass. Therefore, it is almost certainly a mistake of Chopin, who did not realize that in this bar – unlike in all analogous ones – the first note of the bar is not a part of the chord on the 3rd beat. 

category imprint: Editorial revisions

issues: Rhythmic errors , Errors of A , Errors repeated in GE , Errors repeated in FE , Errors repeated in EE

b. 9

composition: Op. 28 No. 10, Prelude in C♯ minor

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In A (→FC,FE) there is no  lowering d2 to d2. The Chopinesque inaccuracy was corrected in EE and GE.

category imprint: Differences between sources

issues: EE revisions , GE revisions , Omission of current key accidentals , Inaccuracies in A , Errors repeated in FE