OffBeat thanks the world for the attention and praise it has heaped on many New Orleans musicians. For the most part, outsiders think of the Big Easy as a hotbed of jazz, a home of the blues, the keepers of funk—and they are right, But there is more. We can grow some fine rock musicians as well, some of whom have already succeeded. The Red Rockers had a brush with fame in the early '80s. The rock band Zebra, New Orleans-born and bred, just put out their fourth album for Atlantic. And...