+#include "spanner.hh"
+#include "item.hh"
+#include "context.hh"
+#include "score-context.hh"
+#include "lilypond-key.hh"
+
+Engraver_group_engraver*
+Engraver::get_daddy_engraver () const
+{
+ return dynamic_cast<Engraver_group_engraver*> (get_daddy_translator ());
+}