+void
+Dynamic_align_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Dynamic_align_engraver, dynamic);
+ ADD_ACKNOWLEDGER (Dynamic_align_engraver, rhythmic_head);
+ ADD_ACKNOWLEDGER (Dynamic_align_engraver, stem);
+ ADD_ACKNOWLEDGER (Dynamic_align_engraver, footnote_spanner);
+ ADD_END_ACKNOWLEDGER (Dynamic_align_engraver, dynamic);
+}
+