Louisiana Philharmonic Orchestra presents Beyond the Score—The Tristan Effect, a multimedia presentation that explores Wagner's opera Tristan und Isolde from "Prelude" to "Liebestod," to discover how this blazingly original music influenced not only composers as different as Mahler, Strauss, Scriabin, and Debussy; but also painters, architects, poets, novelists, playwrights, filmmakers, and philosophers. Guest conductor Markus Huber will lead the orchestra. 7:30 pm at the Mahalia Jackson Theater, 1419 Basin Street. $20–$99. (504) 523-6530 or LPOmusic.com.