Tom Service presents an extended interview with composer Alexander Goehr.
Matthew Sweet introduces a selection of film music inspired by the Cold War.
5/5 Michael Wood tries to define Roland Barthes, who redefined himself throughout his career.
Ian McMillan's guests are Patti Smith, Anthony Horowitz, Holly Pester and Grayson Perry.
4/5 An author explains Roland Barthes's significance to them.
Sheila Hancock, Neil Bartlett, Bim Adewunmi and headteacher Jonny Mitchell debate rules.
3/5 Design historian Penny Sparke charts the influence Barthes has had on her career.
David Yelland, Shelina Zahra Janmohamed, Sally Marlow and Barry Smith discuss alcohol.
2/5 Writer Nick James assesses the impact Roland Barthes still has on the way we look at film.
Writers Anne Fine and Tobias Jones and Prof Sarah Cunningham-Burley discuss family life.