Scottish-American soprano Mary Garden (1874-1967) portrayed Goethe's character Gretchen, known as Marguerite in Charles Gounod's opera Faust. Bettmann/CORBIS hide caption

itoggle caption Bettmann/CORBIS

Pope Benedict XVI addresses the audience at Milan's La Scala opera house where he heard a performance of Beethoven's Symphony No. 9 conducted by Daniel Barenboim. Daniel Dal Zennaro/AFP/Getty Images hide caption

itoggle caption Daniel Dal Zennaro/AFP/Getty Images

From coffeehouses to punk clubs, Matt Haimovitz has played his cello in some surprising places. Steph Mackinnon hide caption

itoggle caption Steph Mackinnon