In the final programme in this series to accompany BBC One's 'Human Planet', Andy Kershaw and Lucy Duran focus on the music of Cities.
Congo: Andy roams the streets of Kinshasa, where there is a thriving scene of young musicians who can't afford guitars, and instead have made amplified thumb-pianos from old car parts.
Mali: Lucy enjoys 'Dimanche a Bamako', the lively Sunday music scene of Mali's capital, and meets two musicians who are stars in Mali, but hardly known outside.
South Africa: A prison is just about as far away from the natural world as it's possible to get. Andy visits the Central Correctional Facility in Pretoria to hear their world-class male choir.
Producers James Parkin and Roger Short.