are covered elsewhere:
@itemize
-@item Fingerings are indicated with @ref{Fingering instructions}.
+@item Fingerings are indicated as shown in @ref{Fingering instructions}.
@item Instructions for @notation{Laissez vibrer} ties
-as well as ties on arpeggios and tremolos is described in
+as well as ties on arpeggios and tremolos can be found in
@ref{Ties}.
-@item Instructions on handling multiple voices is described
+@item Instructions for handling multiple voices can be found
in @ref{Collision resolution}.
+@item Instructions for indicating harmonics can be found in
+@ref{Harmonics}.
+
@end itemize