}
-IMPLEMENT_IS_TYPE_B1 (Span_score_bar_engraver, Span_bar_engraver);
-IMPLEMENT_IS_TYPE_B1 (Piano_bar_engraver, Span_score_bar_engraver);
-IMPLEMENT_IS_TYPE_B1 (Staff_group_bar_engraver, Span_score_bar_engraver);
+
+
+
Span_bar*
Piano_bar_engraver::get_span_bar_p () const