The Fort Worth Symphony Orchestra will close its 100th season with Orff's Carmina Burana, a piece whose popularity extends well beyond the symphony stage. Everyone knows the theme "O Fortuna," used in countless movie trailers and TV commercials, but the entire work is a delight, with its intense rhythmic excitement, its wacky instrumentation and earthy themes about love and life. The concert will also feature the world premiere of Jimmy López' Perú Negro.