David Callinan is nowadays better known as a writer having published an amount of books moving from the thriller genre to children's stories and also some non-fiction essays, but in his younger days he spent many years on the road as a musician and singer-songwriter. He formed Irish folk band The Spalpteens prior to moving to what has been dubbed as "celtic swamo music" with Urban Clearway, with whom he toured with the likes of Elton John, Billy Connolly. Fairport Convention and Rod Stewart, a.o…