+ return Moment ();
+}
+
+MAKE_SCHEME_CALLBACK (Music_sequence, simultaneous_relative_callback, 2);
+SCM
+Music_sequence::simultaneous_relative_callback (SCM music, SCM pitch)
+{
+ Music *me = Music::unsmob (music);
+ Pitch p = *Pitch::unsmob (pitch);
+ return music_list_to_relative (me->get_property ("elements"),
+ p, false).smobbed_copy ();