Listen to George Gershwin’s Rhapsody in Blue. It was written for piano and jazz band. Is Gershwin’s composition classical in style, or is it jazz? What qualifi es it as belonging to or not belonging...

Listen to George Gershwin’s Rhapsody in Blue. It was written for piano and jazz band. Is Gershwin’s composition classical in style, or is it jazz? What qualifi es it as belonging to or not belonging to popular music?

Do you fi nd structures in popular music like those of classical music—for example, theme and variations, rondos, fugues, sonatas, and so on? Which structure, if any, seems to dominate?