 By the 1960s, the scene that had developed out of the American folk music revival had grown to a major movement, utilising traditional music and new compositions in a traditional style, usually on acoustic instruments.In America the genre was pioneered by figures such as Woody Guthrie and Pete Seeger and often identified with progressive or labor politics.In the early sixties figures such as Joan Baez and Bob Dylan had come to the fore in this movement as singer-songwriters.