In the late sixties and early seventies, there was music by floyd, zeppelin, third ear band, jethro tull, captain beefheart etc etc classed as 'underground music'. I think the real and (thankfully) still thriving underground music is folk music. This is proved to me when i mention to people in work that i'm going to see people (legends) like Jansch, Carthy, Swarbrick, Harper, and they say 'who?' cos they've never heard of em! There's always been a real solid (and underground cos it rarely surfaces on the mass media - apart from Harding's show or local radio) folk scene. So, anyone who says folk is dead does'nt understand what folk music is and should visit some of the festivals or local folk clubs and git edicated!! (in my 'umble opinion!