If you've listened to prior episodes of this podcast, you know that a little bit of music theory goes a long way in unlocking the mysteries of why musical gestures produce certain effects. Great composers like George Gershwin possessed an innate sense of how simply voicing a chord in a particular way can dramatically change how a listener experiences the muslc. In this episode, we will focus on about 20 measures from the first movement of Gershwin's fabulous piano concerto, Concerto In F. Within the framework of a unique genre, symphonic jazz, these measures are a lesson on how tension is created and sustained -- in the spirit of the entire Western European tradition!