This document provides an overview of American folk traditions from the early 20th century to present day. It discusses the origins and evolution of various regional styles such as Appalachian folk music, cowboy songs, marching bands, blues, and bluegrass. It also outlines the folk revivals of the 1930s-40s led by figures like Woody Guthrie and Pete Seeger and the emergence of popular national styles like country and honky tonk. The document concludes by noting the significant influence of American folk on the British folk music scene and genre in the 1960s.