The sharp before the bottom note of the chord appears only in the later sources, bearing traces of an intense editorial revision – EE2 (→EE3) and GE2 (→GE3). The revisers could have considered the 
in the next bar – written probably due to the simultaneously stroke d
1 in the R.H. – to be a signal that there should be a 
before the discussed note. In the main text we give the unambiguous version of FC (→GE1), FE and EE1, in which the bass line features a repetition of the sound at the transition between the bars, so characteristic for leading voices in this Etude. In order to avoid doubts, we provide this note with a cautionary natural.
category imprint: Differences between sources
issues: EE revisions, GE revisions
notation: Pitch