FE (→GE1) has an a as the 1st note of the bottom voice in the R.H. instead of a b. This patent error was corrected in FES, as well as in EE and in the subsequent GE (in GE1a in a simplified manner – by removing the ledger line without moving the note head).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Annotations in teaching copies, EE revisions, Errors in FE, GE revisions, Annotations in FES
notation: Pitch