Janis Joplin's agent took her to a place in up-state New York to try and get her off heroin. Jimi Hendrix followed Bob Dylan there for the chance to meet his idol. There's more to Woodstock than a music festival in 1969. British Rock Critic Barney Hoskyns explores the music scene that became the centre of 1960's idealism. His new book is called Small Town Talk: Bob Dylan, The Band, Van Morrison, Janis Joplin, Jimi Hendrix and Friends in the Wile Years of Woodstock.