Pianist Awadagin Pratt is known for challenging the classical musical establishment by forcing his audiences to rethink the way music is heard. He will open the 2005-2006 New Mexico Symphony Orchestra season with performances of Beethoven's Piano Concerto No. 3 and Mahler's Symphony No. 5 at UNM's Popejoy Hall on Friday, Sept. 16, through Saturday, Sept. 17. Come on down and check out an Albuquerque fave. Tickets range from $10 to $60. Call for times. 881-8999.