Mike Harding's guest this week is the singer, songwriter and guitarist Martin Simpson. Martin Simpson's latest album True Stories is a collection of songs, both traditional and originally composed, accompanied by Martin's trademark guitar and banjo style. It features guest appearances from legendary bassist Danny Thompson, pedal steel guitarist BJ Cole and Bellowhead's Jon Boden on fiddle and is launched at the forthcoming Cambridge Folk Festival. It is the follow up to his 2007 release Prodigal Son, which earned him the highly coveted Best Album and Best Original Song awards at the BBC Radio 2 Folk Awards. Martin chats to Mike about the ideas behind some of the songs. Plus, there's Mike's usual selection of the very best in folk, roots and acoustic music including the latest album releases and news from the world of folk.