WICHITA, Kan. (AP) — An annual outdoor symphony concert in the Flint Hills is expected to draw a crowd of 7,500 when it returns to Chase County for its 10th anniversary. The Symphony in the Flint Hills changes location each summer, but this year's event will be held Saturday at the Tallgrass Prairie National Preserve, where the inaugural concert took place in 2006. Grammy Award-winning artist Lyle Lovett will perform at the event for the second time. The Wichita Eagle reports that Symphony in the Flint Hills is a nonprofit aiming to spur appreciation and knowledge of the tallgrass prairie by bringing people together to experience it. In addition to an evening concert, the event also features educational programs, walking tours, an instrument "petting zoo" and a silent auction featuring prairie-themed art and photography.