Dan Schatz wrote: Here in the States there are any number of community choruses that sing Sacred Harp, gospel, and other folk-related music.

Let me add that here in North America many of our community choruses, such as the Solidarity Singers of New Jersey, or the Brooklyn Women's Chorus, or the Syracuse Community Chorus, come out of the political folk tradition, and therefore do many songs from the labor, socialist, civil rights, women's, LGBT, and peace movements. Some of these songs are traditional in the sense of being old and anonymous. But many more are songs whose authors we know, including older songs such as Bread and Roses and Solidarity Forever, and newer songs by such people as Pat Humphries, Holly Near, and Bev Grant.