My song is my weapon

In the late 1940s a left-wing organization called People's Songs used their music as a battle cry for civil rights, civil liberties, and world peace. They were inspired by Woody Guthrie, led by Pete Seeger, and sponsored by Aaron Copland, Leonard Bernstein, Oscar Hammerstein II, and Paul Robeson among others. Many members of the group were involved in musical and political activities that spanned twenty years and encompassed sweeping changes in the American political arena. --Jacket