If the oft-said phrase “it skips a generation” is borderline cliquish, nonetheless, it still fits Rusty Metoyer to a “T.” The Lake Charles zydeco accordionist and vocalist’s parents, Russell and Portia, didn’t play music, yet both of Metoyer’s grandparents played professionally. Grandfather Louis Metoyer was a jazz and blues man until switching to Zydeco in the ’80s with Henry Randle & the Zydeco Soul Express. One night circa the mid-’60s, Louis even drummed for Ike and Tina Turner in Lak...