This article describes the methods and arguments of Hearing the Americas, a digital public history project that illuminates the history of popular music and the recording industry from 1890 to 1925. We argue that the use of digital tools allows the website to integrate sound directly into writing on music and thereby explicate a series of historical arguments. The article examines three arguments advanced by Hearing the Americas, showing in each case how digital tools generate new insights. The first case uses mapping to reveal some of the specific ways in which the economic and social context of Jim Crow shaped the experiences of Black performers; the second integrates sound and text to reveal the origins of certain blues conventions in the racist stereotypes of minstrel shows; and the final case uses digital tools to argue that the marketing strategies of the recording industry throughout the Americas helped produce a key shift in patterns of globalization.