Music Licensing - Caliban's Dream

[Julia Massey]

Greetings from Ho Chi Minh City,
I'm a film-maker currently editing a film for a very high profile non-profit organisation here.
The film aims to raise awareness of how Vietnamese donors are helping put in place initiatives to help children born into disadvantaged circumstances. I wanted to use the track Caliban's Dream with the film. Can anyone offer any advice as to who I might approach for permission to use this track?
Many thanks,
Julia