In our November issue, we looked at the Louisiana talent over the last 20 years to gauge the health of our music community; last year’s recordings similarly reassure us that musicians in the area aren’t coasting or licking their post-Katrina wounds. Or, if they are dealing with the hurricane experience, they’re doing in artistically resonant ways. One of our post-Katrina songs is Al “Carnival Time” Johnson’s “Lower Ninth Ward Blues,” but since the song’s a singl...