p read . ▁ ▁The ▁traditional ▁s ina wi ▁ensemble ▁followed ▁the ▁principle ▁of ▁sam - h ye on - y uk - g ak ▁( 三 <0xE7> <0xB5> <0x83> 六 角 ), ▁with ▁two ▁fl utes , ▁a ▁ha ege um , ▁a ▁da ege um , ▁a ▁j ang gu ▁hour glass - d rum , ▁and ▁a ▁large ▁bu k ▁drum . ▁However , ▁today ▁other ▁traditional ▁Korean ▁instruments ▁such ▁as ▁the ▁gay age um ▁and ▁geom ung o ▁are ▁also ▁often ▁included . ▁ ▁See ▁also ▁ ▁Korean ▁culture ▁ ▁List ▁of ▁Korea - related ▁topics ▁ ▁Category : K ore an ▁styles ▁of ▁music ▁Category : K ore an ▁traditional ▁music <0x0A> </s> ▁S OR AG ▁is ▁a ▁ 1 9 8 1 ▁role - play ing ▁game ▁supp lement ▁for ▁Tra v eller ▁published ▁by ▁Par ano ia ▁Press . ▁ ▁Cont ents ▁S OR AG ▁is ▁a ▁book ▁that ▁details ▁S OR AG , ▁the ▁Scient ific , ▁Oper ations , ▁Research ▁and ▁Administration ▁Group ▁- ▁the ▁intelligence ▁and ▁counter - int elligence ▁ag ency ▁of ▁the ▁Z hod ani ▁Cons ulate . ▁S OR AG ▁is ▁a ▁supp lement ▁describing ▁the ▁Z hod ani ▁esp ion age ▁service , ▁with ▁details ▁of ▁its ▁organization ▁and ▁function . ▁ ▁It ▁includes ▁rules ▁for ▁S OR AG ▁characters , ▁covering ▁background , ▁new ▁skills ▁( such ▁as ▁crypt ography , ▁counter fe iting , ▁and ▁tort ure ), ▁and ▁new ▁equipment . ▁ ▁Public ation ▁history ▁S