Keith Frank is at the forefront of a nouveau zydeco wave.

When Boozoo Chavis returned to zydeco in the early 1980s, his hard-driving button accordion style appealed to young fans who hadn't been interested in their parents' sleepy two-steps and waltzes. Then some young members of the Broussard clan in Lawtell formed a band that combined a Boozoo-style accordion with '60s soul-style vocals and steps, and soon Zydeco Force was p...