6/6. Paul Sexton explores the life and career of Mississippi-born blues singer, songwriter and guitarist Robert Johnson , who died in 1938, aged 27, unaware of the immeasurable impact his recordings would have on postwar Chicago blues, jazz, R&B and rock. This final edition explores the three possible burial sites for Johnson and features an interview with the 80-year-old widow of the grave-digger who buried the blues legend back in August 1938. Contributors include John Hammond , Taj Mahal and BB King.