Professor  Greenberg presents 24 'lectures' in a documentary style that educates  while enjoying. He shows that learning is fun  when the presentation is fun. In one of the early lectures, Greenberg  admits to wanting to be a DJ when he was growing up, and uses this  opportunity to live his dream. He talks about the composers  and the times, but in a manner that makes listening easy. There are,  however, good stretches of music to exemplify the words.