4 texidoc = "Shows the output-attributes property of a grob being set.
5 This should have no effect in the Postscript backend. In the SVG
6 backend these settings should produce this group tag:
7 @code{<g id=\"123\" class=\"foo\" data-whatever=\"bar\"> @dots{} </g>}
12 \override NoteHead.output-attributes =
13 #'((id . 123) (class . foo) (data-whatever . "bar"))