I’m listening to some tapes by Robert Greenberg (available from the Teaching Company) on the history of music. They’re very entertaining… I hadn’t realized, for example, how significant opera was in the development of many other musical forms like oratorio and sonata form. Then I remembered that there was somebody else I had heard on the radio who gave talks called “What makes it so great?” But who? Was it Greenberg? One quick visit to Google later, I learned that it’s Robert Kapilow, another clever and inspirational music geek. Listen to him wax rhapsodic about Harold Arlen’s Somewhere Over the Rainbow on NPR’s Performance Today.