- Sequential_music_iterator ();
- ~Sequential_music_iterator ();
-
- virtual void construct_children ();
- virtual Moment next_moment () const;
- virtual bool ok () const;
-
-protected:
- Sequential_music * sequential_music_l() const;
-
- virtual void do_print() const;
- virtual void do_process_and_next (Moment);
-
+ VIRTUAL_COPY_CONS (Music_iterator);
+ DECLARE_SCHEME_CALLBACK(constructor, ());