In FE (→GE) we can see here "zf", which we change to the correct 
. The issue of the Chopinesque notation of forzato and its variants in other sources is discussed in detail in the note in bar 1. In EE it was revised differently, arbitrarily, providing a 
indication.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Inaccuracies in GE, Inaccuracies in FE
notation: Verbal indications
