sentences:  It is performed during halftime and post game and is sung in four-part harmony following the conclusion of the post-game performance.On certain occasions (such as the 1996 Rose Bowl and the 2005 Sun Bowl) the Alma Mater is performed during the pre-game show.The melody of the Alma Mater is based on the "Chorale St. Antoni" by Franz Josef Haydn (also heard in Johannes Brahms' "Variations on a Theme by Haydn, Op.