The Grammys and the south Louisiana town of Maurice (population 642) have as much in common as Lil Wayne and Alison Krauss. But just as Wayne and Krauss are multiple Grammy winners, so is Maurice’s hidden music gem, Dockside Studios.

Dr. John’s City That Care Forgot, winner of Best Contemporary Blues Album, gave Dockside its seventh Grammy winner and 15th Grammy-nominated album. Dockside’s past Grammy wins include three by B. B. King and one each by James Cotton, BeauSoleil and Ir...