-ADD_ACKNOWLEDGER (Episema_engraver, note_column);
-ADD_ACKNOWLEDGER (Episema_engraver, note_head);
+
+void
+Episema_engraver::boot ()
+{
+ ADD_LISTENER (Episema_engraver, episema);
+ ADD_ACKNOWLEDGER (Episema_engraver, note_column);
+ ADD_ACKNOWLEDGER (Episema_engraver, note_head);
+}