<p>The dramatic story of five key turning points in a thousand years of Western music - discoveries that changed the course of history. <br><br>Who first invented ''Doh Re Mi...''?<br><br>What do we mean by "in tune"?<br><br>Looking back down the corridor of a thousand years, Howard Goodall guides us through the stories of five seismic developments in the history of Western music. His "big bangs" may not be the ones we expect - some are surprising and some are so obvious we overlook them - but all have had an extraordinary impact. <br><br>Goodall starts with the invention of notation by an 11th-century Italian monk, which removed the creation of music from the hands of the players to the pens of the composers; moves on to the first opera; then to the invention of the piano, and ends with the story of the first recording made in history. <br><br>Howard Goodall has the gift of making these complicated musical advances both clear and utterly fascinating. Racy and vivid in a narrative full