He's a cellist and composer but his study has all the hallmarks of scientific research.
David Teie is working on a theory that explains the effect of music on emotions.
It sounds simple enough: we react to music that reminds us of familiar sounds like laughter, heartbeats, or a mother's cooing. But he's not using humans to prove his theory, rather he's using our ancestors, monkeys.
Glimpses at two very different cinematic takes on La Boheme.....
This first one, due for US release this month, has a traditional look and a starry cast (Anna Netrebko and Rolando Villazon).
Meanwhile, director Werner Herzog contrasts Puccini's music with images of Ethiopia and the Mursi people.