As April rolls around and the thoughts of most New Orleanians turn to Jazz Fest, another wonderful music and arts celebration—Festival International de Louisiane—is also shifting into gear. One of the best-kept musical secrets in Louisiana, Festival International is held in Lafayette during a six-day period (this year running from April 21-26). This free festival is a virtual embarrassment of riches for world music fans and a treat for lovers of Acadiana.

The French language is...