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Today marks the 20th anniversary of the death of legendary Cardiff-born children's writer Roald Dahl, and there are currently two programmes on ³ÉÈË¿ìÊÖ iPlayer that feature the author.

In the ³ÉÈË¿ìÊÖ Radio 2 programme How Roald Dahl Shaped Pop, David Tennant tells the tale of the stamp Dahl left on the world of pop music.

Kelly Jones of Stereophonics explains how he found inspiration for songs such as I Stopped To Fill My Car Up in Dahl's grisly, suspenseful short stories, and Kate Nash reveals how Dahl's fantastical children's books have influenced her own storytelling style, stirring her to invent surreal characters and magical places in songs like Mariella and Little Red.

Plus, Tennant reveals how a song about Willy Wonka gave a Rat Pack legend his only US number one. and listen to it on ³ÉÈË¿ìÊÖ iPlayer.

Also, in the latest episode of Country Tracks Ellie Harrison visits Great Missenden in Buckinghamshire, home for 36 years to the author. She meets the Dahls' family friend and vice chaiman of the Roald Dahl Museum and Story Centre, Amanda Conquy.

The episode is available on ³ÉÈË¿ìÊÖ iPlayer until the morning of Sunday 28 November.