(cautionary-width (assoc-get 'width cautionary-props 0.25))
(output-grob (ly:text-interface::print grob))
(ref-grob (grob-interpret-markup grob "8"))
(cautionary-width (assoc-get 'width cautionary-props 0.25))
(output-grob (ly:text-interface::print grob))
(ref-grob (grob-interpret-markup grob "8"))