Three cheers for curation. Limelight, an Australian culture web site, has selected "40 of the most informative, representative and entertaining videos" available on YouTube. And they've strung them together in such a way that they offer a "chronological history of western classical music from the twelfth century to the modern age," taking you from The Middle Ages and The Renaissance, through the Baroque, Classical, and Romantic periods, and ending with The Birth of Modernism and Post-WWII innovations. The clip above comes from Anton van Munster's film on Vivaldi, I Musici, which is available on Netflix. (If you're not a subscriber, a one month free trial is available here.) Other clips put a spotlight on Bach, Mozart, Chopin, Verdi, Wagner and others.