In this Wednesday, July 3, 2019 photo, Iranian American maestro Shahrdad Rohani conducts Tehran Symphony Orchestra while performing 19th century Russian composers at Unity Hall, in Tehran, Iran. Classical music may not have mass appeal, but Rohani said in a backstage interview that there's potential for growth, citing a large turnout during a stadium concert last year in Abadan, a provincial city in southwestern Iran. (AP Photo/Vahid Salemi), APTOPIX