Thank You, Community! The Diamond Bar High dbhsorg concert band under the direction of Marie Santos rehearses Tuesday in the world-class instrumental music building completed in February 2023. “Our new facilities have exceeded all the hopes and dreams we had when we first started planning!” shared music teacher Steve Acciani of the beautiful three-story building. “Watching our students thrive in an environment worthy of their incredible talent and work ethic is heartwarming.” The nearly $9.8 million construction of the towering 15,700 square-foot building was funded by voter support of Measure WV.