The Incredible String Band were originally Clive Palmer,Robin Williamson,and Mike Heron. Clive left the band after the first LP "The Incredible String Band" and Mike and Robin performed on the second "The Ten thousand Spirits or the layers of the Onion" This would have been around 1968 if my memory serves me. The came the double album "The wee Tam and the big Huge" which was about as mad as things can get. My wife wont let me play the albums when shes at home but sometimes I sing MAYA at the top of my voice.The string band were always a very aquired taste. I could tell you more if you havent already found a site somewhere.