The melodic spark of Mozart’s much-adored 40th and “Jupiter” Symphonies highlight the season finale, completing a valedictory arch with the 39th, heard the week before. Ms. O’Connor, an ASO favorite in Ainadamar and other works, “held the audience captive” (Chicago Tribune) in a 2008 performance of U.S. composer Peter Lieberson’s five songs based on Nobel Prize-winning Chilean poet Pablo Neruda’s love sonnets.