The arpeggio added in EE is most probably an arbitrary addition, which is proved by the Chopinesque proofreading of FE:
- removed arpeggio mark, initially printed – perhaps by mistake – before that chord; traces of that procedure are clearly visible in FE;
-
the 1 digit added before the d
1-f1 third in the last phase of proofreading (it is absent in GE); in this context, it has only one meaning, i.e. to perform the third simultaneously with the 1st finger.
A tenth chord, also without arpeggio and with the minor third on the black keys performed simultaneously with the 1st finger, marked by Chopin with a curly bracket, is featured in the Prelude in A major, op. 28, no. 7.
There is a similar situation in analogous bar 57, see also the note below.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Authentic corrections of FE
notation: Ornaments