User blog comment:RoyallyBella/Official Season 6 discussion blog/@comment-24864085-20140804204646/@comment-4954276-20140804230440

I'm not sure either, but I think there are two kid of mixed together. First is We Are a Symphony. That is the voicing Musa does. The other is Una voce dentro l'anima te or something. That is the music made by the instruments. For the second song no English title is known yet.