As I am planning for a commitment ceremony I want to know can I still choose prelude, ceremony and recessional traditional wedding songs. Is there any difference in music for traditional wedding ceremonies and commitment ceremony? I have a very special song for my fiancé can I play that also? What are the other things that I need to check out for wedding songs? My nephew also wants to perform a song with his band; can I include his performance as well? Which will be the best time for his performance?