Changes to the World of Bluegrass FestivalCHATTANOOGA, TN.- This year, the International Bluegrass Music Association has made some changes to the World of Bluegrass Festival that happens here in Chattanooga. Chattanooga started hosting the World of Bluegrass Festival just last year, and for the International Bluegrass Music Association, it was an easy decision to name Chattanooga their new home. says Paul Schimiger, Executive Director of International Bluegrass Music Association. says Paul Schimiger, Executive Director of International Bluegrass Music Association. The World of Bluegrass Festival will be happening from October 20-24th, go on their website to get your tickets now.