a @rglos{double sharp} or @rglos{double flat} is made by adding
@samp{isis} or @samp{eses}. This syntax derived from note naming
conventions in Nordic and Germanic languages, like German and
-Dutch. To use other names for accidentals, see @ruser{Note names
+Dutch. To use other names for accidentals, see @ref{Note names
in other languages}.
@lilypond[quote,ragged-right,fragment,verbatim,relative=2]