This was my introduction to YES I was told of their existance by John Swift aka jonathan. He was a friend of mine from Bradford who went to seek his fortune in London in 1969. (anybody heard of him since.) I then saw them at Leeds Uni allnighter same year and had a backstage pass. Went on to buy all their albums and also saw tham at stafford in 77.Best number HEART OF THE SUNRISE still makes the hairs on the back of my neck stand up.