mus = { c'4 }
paperId = \paper { line-width = 5.0 \cm }
layoutId = \layout { ragged-right = ##t }
-scoreHeaderId = \header { piece = "Piece" }
-bookHeaderId = \header { composer = "Composer" title = "Title" }
perfId = \midi {}
-markupId = \markup { hoi }
+markupId = \markup { hoi \italic polloi }
stringId = "title"
+scoreHeaderId = \header { piece = \markupId }
+bookHeaderId = \header { composer = "Composer" title = \stringId }
scoreId = \score {
\scoreHeaderId