To commemorate the 100th birthday of American folk icon and glorious rabble rouser Woody Guthrie, Billy Bragg and his mates in Wilco bundled together the three volumes of their long-running Mermaid Avenue project. Beginning in the mid-1990s, the artists set about putting together a clutch of unfinished songs Guthrie's daughter Nora had given them. If you're a follower of either Bragg or Wilco, then the chances are good you already own a good chunk of this music. Still, there are some wonderful tunes here. Hopefully they'll help expose future Americans to one of the country's great poet-rebels.