I am probably the last person to have realized this, but I just had to create an account to share my "discovery" with like-minded fans:
On the beautiful layered voices part (from 5:40 onwards), Matt starts by singing one voice, then two, then three layered voices.
Three.
Brilliant.
On the beautiful layered voices part (from 5:40 onwards), Matt starts by singing one voice, then two, then three layered voices.
Three.
Brilliant.