In a wide-ranging conversation with University of Oxford's Professor Sarah Hill, DJ Huw Stephens (BBC Radio 6, BBC Radio Wales and BBC Radio Cymru) reveals how he selected 100 Welsh records for his new book, and how these artists have influenced Wales’ culture, past and present. He analyses highlights in the careers of the most important recording artists Wales has produced, singing in English or Welsh – including Tom Jones, Shirley Bassey, Dafydd Iwan, Max Boyce, Manic Street Preachers, Super Furry Animals, Adwaith and Mace the Great.