Since the 1930s and ̕40s, jazz has stood tall in American popular music, drawing into its embrace not only great horn players, percussionists, guitarists, bassists, and pianists, but also some of the greatest singers in America's musical history. Jazz has laid the groundwork for important innovations in modern singing, opening up entirely new ways of delivering songs through what would eventually become jazz standards--songs that formed the basis of the American Songbook. In So You Want to Sing Jazz, singer and professor of voice Jan Shapiro gives a guided tour through the art and...