Sami Yaffa is an accomplished musician who has seen all facets of life as a performing artist - he has toured the world in successful rock bands and earned a living as a street busker. Sound Tracker is his expedition to the world of music. Sami Yaffa is a nomad, a rock star and a musician - in other words, the perfect guide to global sounds, vibes and culture. In this episode Sound Tracker travels to Senegal to learn how this cradle of music has influenced western pop music, among others.