Peter Culshaw trails the enduring troubadour, from a Saharan refugee camp to a mental asylum in Argentina.
We travel to Morocco to visit the Fes Festival of World Sacred Music – an event that attracts over 400,000 people – to learn about Berber culture.
BSS are like musical and cultural evangelists trying to find out about every scene on the planet.
I don't hate music from all over the world. In fact, I love lots of that. But I hate the world music that goes in the world music section.