- Pitch p = *unsmob_pitch (last_pitch);
- Music *m = unsmob_music (music);
- Pitch *check_p = unsmob_pitch (m->get_property ("pitch"));
+ Pitch p = *unsmob<Pitch> (last_pitch);
+ Music *m = unsmob<Music> (music);
+ Pitch *check_p = unsmob<Pitch> (m->get_property ("pitch"));