My husband and I are interested in attending the Tucson Mariachi Festival.  It looks like the final night with all the winners performing occurs on May 7 at 6:30 at Tucson Convention Center.  Is that correct?  Will the concert actually occur in the Tucson Music Hall or another building located at the Tucson Convention Center?  I need to know the exact location to be able to determine the best seats to purchase.  Are there any discounts available for seniors for tickets?  Thank you for answering my questions.