Last December, YouTube, along with a handful of influential classical musicians and organizations, invited musicians worldwide to audition for a spot in the YouTube Symphony Orchestra, the first collaborative online orchestra.  Violinist Calvin Lee, an acupuncturist and surgeon from Modesto, California, is one of more than 90 musicians selected to perform together in a concert at Carnegie Hall on April 15, 2009.  You can watch Dr. Lee's winning video audition below.