-Music*
-Request_chord_iterator::next_music_l ()
-{
- if (first_b_)
- {
- cursor_ = elt_l ()->music_p_list_p_->head_;
- first_b_ = false;
- }
- else
- {
- if (cursor_)
- cursor_ = cursor_->next_;
- }
- if (cursor_)
- return cursor_->car_;
- else
- return 0;
-}