+ {
+ span_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
+ Pointer_group_interface::set_ordered (span_, ly_symbol2scm ("elements"), false);
+ span_ = 0;
+ }
+}
+
+void
+Ledger_line_engraver::acknowledge_staff_symbol (Grob_info s)
+{
+ Spanner *sym = dynamic_cast<Spanner *> (s.grob ());
+
+ if (!span_
+ || (span_->get_bound (LEFT) != sym->get_bound (LEFT)))
+ {
+ stop_spanner ();
+ start_spanner ();
+ }