''The Extraordinary World Of Yes'' celebrates the stunning achievements of ''Yes'' as one of the greatest bands in the history of rock and places some important sign posts along the road towards a better understanding of the mastery behind its amazing music. The central theme in ''The Extraordinary World Of Yes'' is to address the implicit question: What makes Yes so outstanding and what is it that is truly significant about the band and its music? One of the aims along the way is to highlight the positive and often profound messages to be found in the substantial musical output of ''Yes'' over a career that has lasted more than thirty-five years and is still flourishing. What are great ''Yes'' songs such as ''Roundabout,'' ''Yours Is No Disgrace'' and ''Close To The Edge'' really about? How did ''Yes'' go about creating such classic music and what are the keys to appreciating and understanding it?These questions and many more are answered in ''The Extraordinary World Of Yes, '' backed up with quotes from the members of ''Yes'' themselves in an unfolding sequence focusing on the exceptional ''Yes'' musicians, the fascinating Yes history, the remarkable ''Yes'' music and the brilliant ''Yes'' concerts.