-Group_interface::Group_interface (Score_element const* e)
-{
- elt_l_ = (Score_element*)e;
- name_ = "elements";
-}
-
-
-Group_interface::Group_interface (Score_element const *e, String s)
-{
- elt_l_ =(Score_element*)e;
- name_ = s;
-}
-bool
-Group_interface::has_interface_b ()