There’s no question that New Orleans’ cultural scene has been devastated by Hurricane Katrina. But Harry Shearer sees signs of life from the city’s artists, even if the money needed to rebuild the big institutions isn’t there yet. “There are messages everywhere of resilience and defiance, of bringing the city back. Live Music is Back!, says one poster. Another announces a series of poetry evenings in a Quarter bistro. When all else is stripped away, the capital-unintensive arts endure, as does the place’s irreducible eccentricity.”