Book excerpt: In Crossing Traditions: American Popular Music in Local and Global Contexts, a wide range of scholarly contributions on the local and global significance of American popular music examines the connections between selected American blues, rock and roll, and hip-hop music and their equivalents from Senegal, Nigeria, England, India, and Mexico. Contributors show how American popular music promotes local and global awareness of such key issues as economic inequality and social marginalization while inspiring cross-cultural and interethnic influences among regional and transnational communities. Specifically, Crossing Traditions highlights the impact of American popular music on the spread of sounds, rhythms, styles, and ideas about freedom, justice, love, and sexuality among local and global communities, all of which share the same desires, hopes, and concerns despite geographic differences. Contributors look at the local contexts of Chicago blues, early rock and roll, white Christian rap, and Frank Zappa alongside the global influence of Mahalia Jackson on Senegalese blues, the transatlantic character of the British Invasion’s relationship to African American rock, and the impact of Latin house music, global hip-hop, and Bhangra in cross-cultural settings. Essays also draw on a broad range of disciplines in their analyses: American studies, popular culture studies, transnational studies, history, musicology, ethnic studies, literature and media studies, and critical theory. Crossing Traditions will appeal to a wide range of readers, including college and university professors, undergraduate and graduate students, and music scholars in general.