To confine ELISE WITT to the narrow realm of traditional folk would be a mistake. True, those are her roots, and shes careful not to lose sight of folks long-standing role in social change. Her Open the Window is destined to become a new signature song for change, in fact. With Witt, the notion of song thats communal, rather than just performed by an artist, is important. But Witts absorption of song traditions from across the world - what she describes as global, local and homemade songs - says more about what folk represents in the 21st century.