Paul Taylor is 80 years old, but the "naughty boy of dance" (coined by Martha Graham) hasn't lost his sense of humor and spirited innovation. This year at American Dance Festival, his company presents an ADF-commissioned world premiere as well as classic repertory works. Performances run through July 17 and are divided into two programs: Program A on July 15 and 16 at 8 p.m., and Program B on July 17 at 8 p.m. A children's matinee is slated for July 17 at 1 p.m. —Sarah Ewald