in notation-splittexi.log:
WARNING: Unable to find node 'The Feta font' in book notation.
$ git grep -n 'The Feta font'
scm/define-markup-commands.scm:3110:the music font. See @ruser{The Feta font} for a complete listing of
#:category music
"@var{glyph-name} is converted to a musical symbol; for example,
@code{\\musicglyph #\"accidentals.natural\"} selects the natural sign from
-the music font. See @ruser{The Feta font} for a complete listing of
+the music font. See @ruser{The Emmentaler font} for a complete listing of
the possible glyphs.
@lilypond[verbatim,quote]