OPELOUSAS — The 44th annual Original Southwest Louisiana Zydeco Festival will bring music, food and Creole culture to the Yambilee Festival Grounds on Saturday, Sept. 5. Gates will open at 10 a.m., with music beginning at noon, at 1939 W. Landry St. in Opelousas. Festival fun will continue well into the night. This year’s event will honor Sid Williams, proprietor of the legendary zydeco club El Si…