initial_outside_staff = g->get_property ("outside-staff-priority");
if (last) //not the first grob in the list
{
SCM last_outside_staff = last->get_property ("outside-staff-priority");
/*
initial_outside_staff = g->get_property ("outside-staff-priority");
if (last) //not the first grob in the list
{
SCM last_outside_staff = last->get_property ("outside-staff-priority");
/*