From Louis's astonishing trumpet solos to Basie's "One O'Clock Jump," Ella's scatting and Duke's "Mood Indigo," jazz is the quintessential American music. Chill out to cool riffs in this beginner's guide to one of the most diverse and storied musical genres. Explore its tangled history and its development from an ethnic oddity to become America's most popular music, and then part of the avant garde in less than 50 years.