On a recent Saturday night, the variety of music available in New Orleans was enough to generate an Excedrin headache in even the most earnest of aficionados. The French Quarter, as always, was saturated with a cacophony of blues, Dixieland and top forty renditions that tourist-types apparently adore. Tipitina's played host to retro-rockers Ed Cassidy and Randy California, who replicated the sound if not the, well, spirit of the sixties. Further uptown, both blues and Cajun music cou...