Defining the people's songs : national identity and the origins of the North American folk revival to 1958 -- Visions of diversity : cultural pluralism and the great boom of the folk revival, 1958-1965 -- Folk music and community in the village : Greenwich Village and Yorkville in the sixties -- The post-revival folk : Canadian dreams and American nightmares in the late 1960s and 1970s -- Folk since the seventies : diversity and insularity