\set Score.timing = ##f
\set Score.defaultBarType = "-"
\override NoteHead.style = #'petrucci
\override Staff.TimeSignature.style = #'mensural
\clef "petrucci-g"
\set Score.timing = ##f
\set Score.defaultBarType = "-"
\override NoteHead.style = #'petrucci
\override Staff.TimeSignature.style = #'mensural
\clef "petrucci-g"