This work investigates the origins and evolution of the blues as a foundational ethnic music tradition within the American social landscape. Paul Oliver, a recognized authority on blues music, utilizes a combination of historical documentation and the personal testimonies of performers to construct a narrative that links musical development to the broader experiences of African Americans. The text argues that the blues serves as a primary historical record of life, labor, and migration from the post-Reconstruction South to the urban centers of the North.

Experts frequently cite this work as a foundational text for understanding the cultural context of blues music. Readers often note that the prose is accessible while maintaining a high level of historical rigor regarding the evolution of the genre.