+void
+Text_engraver::acknowledge_note_column (Grob_info info)
+{
+ // Make note column (or rest, if there are no heads) the parent of the script.
+ extract_grob_set (info.grob (), "note-heads", heads);
+ Grob *x_parent = (heads.size ()
+ ? info.grob ()
+ : Grob::unsmob (info.grob ()->get_object ("rest")));