The corrections and crossings-out visible in A reveal the changes performed both to the range and the position of the 
hairpin in this place (As does not contain any dynamic markings). The initial mark, written between the staves, started between the 6th and 7th quavers in b. 10, which was changed by Chopin – he moved the beginning under the last quaver in that bar. Eventually, both versions were crossed out, and a new hairpin was written over the R.H. part, which we give in the main text. Although the new mark begins at the end of b. 10, both FC (→GE) and FE2 (→EE) placed its starting point only in b. 11 – these changes cannot come from Chopin, since he did not directly participate in the publication of the Preludes after having finished A. The longest mark of CGS is most probably an arbitrary interpretation of the hairpin of FE2 by the copyist.
category imprint: Differences between sources; Corrections & alterations; Source & stylistic information
issues: Errors in FE, Scope of dynamic hairpins, Corrections in A, Deletions in A, FE revisions, Inaccuracies in FC
notation: Articulation, Accents, Hairpins