-ADD_ACKNOWLEDGER (Stanza_number_align_engraver, lyric_syllable);
-ADD_ACKNOWLEDGER (Stanza_number_align_engraver, stanza_number);
+
+void
+Stanza_number_align_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Stanza_number_align_engraver, lyric_syllable);
+ ADD_ACKNOWLEDGER (Stanza_number_align_engraver, stanza_number);
+}