今天第一次听说这个。调研了一下。居然是真的，还有伊朗的国家政策。
Some Muslims believe that only vocal music is permissible (halal) and that
instruments are forbidden (haram). Hence there is a strong tradition of a
cappella devotional singing. http://freethinker.co.uk/2010/06/03/why-do-muslims-hate-music/
IRAN has banned private schools from teaching music （公立的早禁了）, saying
it clashes with the country’s Islamic values.
Said Ali Bagherzadeh, head of the private schools office in the Education
Ministry:
“The use of musical instruments is against the principles of our value
system.”
Teaching music in state schools has always been prohibited.
