les ▁such ▁as ▁Pers ian ▁music ▁and ▁Kur d ish ▁music , ▁and ▁also ▁the ▁music ▁of ▁the ▁C au cas ian ▁pe op les . ▁Although ▁the ▁A zer ba ij ani ▁language ▁is ▁not ▁an ▁official ▁language ▁of ▁Iran ▁it ▁is ▁widely ▁used , ▁mostly ▁or ally , ▁among ▁the ▁Iran ian ▁A zer ba ij an is . ▁ ▁Liter ature ▁Many ▁po ets ▁that ▁came ▁from ▁A zer ba ij an ▁wrote ▁poetry ▁in ▁both ▁Pers ian ▁and ▁A zer ba ij ani . ▁Ren owned ▁po ets ▁in ▁A zer ba ij ani ▁language ▁are ▁Nas imi , ▁Shah ▁Is mail ▁I ▁( who ▁was ▁known ▁with ▁the ▁pen - name ▁Kh ata i ), ▁F uz uli , ▁Nas imi ▁and ▁Jah an ▁Shah ▁were ▁probably ▁born ▁outside ▁what ▁is ▁now ▁Iran ian ▁A zer ba ij an . ▁A zer ba ij ani ▁was ▁the ▁dominant ▁language ▁of ▁the ▁r uling ▁dynast ies ▁of ▁the ▁Turk ic ▁r ul ers ▁of ▁the ▁area ▁such ▁as ▁the ▁Ak ▁Ko y un lu , ▁K ara ▁Ko y un lu ▁ ▁and ▁later ▁it ▁was ▁used ▁in ▁the ▁Saf avid ▁for ▁court , ▁until ▁Is fah an ▁became ▁capital ▁and ▁religious ▁dign itar ies , ▁military . ▁In ▁the ▁ 1 6 th ▁century , ▁A zer ba ij ani ▁literature ▁further ▁fl our ished ▁with ▁the ▁development ▁of ▁Ash ik ▁() ▁po etic ▁genre ▁of ▁b ards . ▁During ▁the ▁same ▁period , ▁under ▁the ▁pen -