Premise

The future of jazz is explored with Wynton Marsalis and his Jazz at Lincoln Center Orchestra as they prepare a Duke Ellington concert for kids in Chicago. Also: the role musician Youssou N'Dour played in Senegal's 2012 presidential election; how Scottish folk singer Julie Fowlis is helping to preserve the Gaelic language and popularize Celtic folk music; the surprising global success of the Icelandic indie folk-pop band Of Monsters and Men.