▁based ▁on ▁the ▁notion ▁that ▁lit urg ical ▁music ▁is ▁conce ived ▁and ▁composed ▁according ▁to ▁the ▁norm s ▁and ▁needs ▁of ▁the ▁various ▁historic ▁lit urg ies ▁of ▁particular ▁denomin ations . ▁ ▁Roman ▁Catholic ▁church ▁music ▁ ▁The ▁interest ▁taken ▁by ▁the ▁Catholic ▁Church ▁in ▁music ▁is ▁shown ▁not ▁only ▁by ▁pract ition ers , ▁but ▁also ▁by ▁numerous ▁en act ments ▁and ▁reg ulations ▁calculated ▁to ▁fost er ▁music ▁worthy ▁of ▁Div ine ▁service . ▁Contempor ary ▁Catholic ▁official ▁church ▁policy ▁is ▁expressed ▁in ▁the ▁documents ▁ ▁of ▁the ▁Second ▁V at ican ▁Council ▁Sac ros an ct um ▁Con cil ium , ▁the ▁Constitution ▁on ▁the ▁Sac red ▁Lit ur gy ▁prom ul g ated ▁by ▁Pope ▁Paul ▁VI ▁on ▁December ▁ 4 , ▁ 1 9 6 3 ▁( items ▁ 1 1 2 – 1 2 1 ); ▁and ▁most ▁particularly ▁Music am ▁sac ram , ▁the ▁Inst ruction ▁on ▁Music ▁In ▁The ▁Lit ur gy ▁from ▁the ▁Sac red ▁Cong reg ation ▁for ▁R ites , ▁on ▁March ▁ 5 , ▁ 1 9 6 7 . ▁ ▁While ▁there ▁have ▁been ▁historic ▁disput es ▁within ▁the ▁church ▁where ▁elaborate ▁music ▁has ▁been ▁under ▁criticism , ▁there ▁are ▁many ▁period ▁works ▁by ▁Or land us ▁de ▁L ass us , ▁Al leg ri , ▁Vitt oria , ▁where ▁the ▁most ▁elaborate ▁means ▁of ▁expression ▁are ▁employed ▁in ▁lit urg ical ▁music , ▁but ▁which , ▁never theless , ▁are ▁sp ont aneous ▁out p our ings