Protest Songs: Music representing the people's voice
The protest song is an old tool, it's been used in America for more than 50 years. In Kaufman's article there is quote which says some songs must be written and then performed immediately as it is the duty of those songs to help the people they represent.
One very meta example of a protest song is "White People for Peace," a song by hard rock band Against Me! Written during the war in Iraq, the song's chorus goes "Protest songs in response to military aggression/protest songs to stop the soldiers guns/but the battle raged on/"
The song laments the capitalist greed that affects many wars (though perhaps not the Iraq War.) Even still, it is a protest song that allows opponents of the war to rally together and sing, just like the song says, to try to stop the soldiers guns.
Kaufman's article questions the role of music in the Occupy Wall Street movement, which, unlike protests of the 60s and 70s, had no single music anthem or leader to spread their war cry. Instead, some Occupy groups wrote their own music, with success on a local level. Kaufman says Woody Guthrie, master of the protest song, would have approved. But who knows what would have happened had they had a real musical leader rise from the pack.
Articles:
“Woody Guthrie and the Occupy Movement” Will Kaufman. Institute for studies in American Music. Spring 2012.