Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Pitch
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


Pitch

b. 2

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

..

In FE1 the 4th and 5th semiquavers of the bar are b1-a1. It must be a mistake – it is likely that the engraver was influenced by the structure of the previous and the next two figures. The error was rectified in FE2; it is also all the remaining sources that include the correct version, analogous to b. 6 and 14.

category imprint: Differences between sources

issues: Errors in FE , FE revisions

b. 3-15

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

Short accents in A, literal reading (→FCGE, →FEEE)

Long accents, our alternative suggestion

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents

b. 9

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

..

In the main text we add a cautionary  before a, in spite of the fact that the crossing-out visible in A suggests that Chopin considered it superfluous.

category imprint: Editorial revisions; Source & stylistic information

issues: Cautionary accidentals , Deletions in A

b. 9

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

..

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

b. 11

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

..

In the main text we add cautionary sharps before d1 and D.

category imprint: Editorial revisions