Mallory Haney Loo opens the Paul S. Hesselink Concert Series By Debbie Hall When most people think about the pipe organ, they probably picture a grand church sanctuary, centuries-old compositions and the unmistakable sound of Johann Sebastian Bach. Mallory Haney Loo would like to expand that picture. How about Queen’s “Bohemian Rhapsody”? Or a piece by Chilean rock band Los Jaivas? Or the protest song “El Pueblo Unido Jamás Será Vencido” by Quilapayún? On Friday, Sept. 18, Ha