The Louisville Orchestra offers a preview of its coming season — and a revue, too, if you will, of the many styles of music the symphony performs — in a free concert Saturday at the Iroquois Amphitheater. Director Teddy Abrams steps the orchestra along in “Raiders March,” from the “Raiders of the Lost Arc,” score by John Williams. Then dances into the Igor Stavinsky ballet “Petrouchka,” which the symphony performs in March with the Louisville Ballet. Jubilant Sykes sings the traditional “Motherless Child.” The orchestra swings into the Louis Prima classic “Sing, Sing, Sing,” made famous in a 1938 Carnegie Hall performance by an all-star ensemble headed by Benny Goodman, Harry James and Gene Krupa. It’ll be fun to hear Abrams’ string band uncork that lively tune.