There’s a very interesting 10 minute TEDx talk by South African Ethnomusicologist Ingrid Bianca Byerly about the power of music to break down cultural barriers which is well worth watching.
Hosted by TEDxCincinnati: Sound Ideas, the talk is summarized as:
Ethnomusicologist Ingrid Bianca Byerly explains why the shortest distance between two cultures is music. In her provocative talk, she reveals how music is not merely unsurpassed in aesthetic and entertainment potential, but unparalleled as a defining, transformative and prophetic force of communication between individuals and societies.
Dr Byerly was born and grew up in South Africa but is now a Senior Lecturing Fellow at Duke University.