John Kelly talks to actor and screenwriter Mark O'Halloran, who came to the public's attention for his debut feature-length film Adam & Paul, which he wrote and starred in

John Kelly meets fiddle player Caoimhín Ó Raghallaigh, who is widely known for playing both traditional Irish and experimental music. Before becoming a professional musician, Caoimhín studied theoretical physics at Trinity College Dublin, and now travels the world playing a 10-string instrument called the `hardinger d'amore", performing both solo and as a member of The Gloaming and This Is How We Fly