Paper_column * sc
= dynamic_cast<Paper_column*> (unsmob_element (get_property ("currentMusicalColumn")));
- SCM sh = shortest_playing.make_scm( );
- SCM st = starter.make_scm();
+ SCM sh = shortest_playing.smobbed_copy( );
+ SCM st = starter.smobbed_copy();
sc->set_elt_property ("shortest-playing-duration", sh);
sc->set_elt_property ("shortest-starter-duration", st);