Word of Mouth - 04/01/2011

In January 1961 in New York's Greenwich Village, Bob Dylan was beginning a career that would revolutionise song-writing. Michael Rosen lends an ear to the last fifty years of the song-lyric. Dylanologist Michael Gray explains why Bob matters. A sceptical David Quantick argues that Dylan's influence was not entirely helpful to rock music. And singer-songwriter KT Tunstall pays tribute to one of her biggest influences. Producer: Peter Everett.