, ▁he ▁gave ▁rec it als ▁as ▁har ps ich ord ist , ▁and ▁was ▁a ▁fellow ▁of ▁Tr inity ▁College ▁and ▁a ▁lect urer ▁in ▁music ▁from ▁ 1 9 5 8 ▁to ▁ 1 9 6 8 . ▁He ▁retired ▁from ▁his ▁post ▁as ▁Director ▁of ▁Music ▁at ▁Tr inity ▁College ▁in ▁ 1 9 6 8 . ▁ ▁His ▁interest ▁in ▁early ▁music ▁prompt ed ▁him ▁to ▁prepare ▁several ▁real is ations ▁of ▁scores ▁from ▁the ▁period . ▁While ▁music olog ists ▁considered ▁his ▁ed itions ▁controvers ial , ▁his ▁performances ▁were ▁important ▁for ▁introdu cing ▁early ▁oper atic ▁master pie ces ▁to ▁the ▁general ▁public . ▁In ▁ 1 9 6 2 , ▁he ▁prepared ▁a ▁performing ▁score ▁of ▁Monte ver di ' s ▁L ' in cor on azione ▁di ▁Po ppe a ▁for ▁a ▁production ▁at ▁the ▁G ly nd eb our ne ▁Festival . ▁He ▁subsequently ▁edited ▁Monte ver di ' s ▁other ▁surv iving ▁stage ▁works , ▁L ' Or fe o ▁and ▁Il ▁r itor no ▁d ' U l isse ▁in ▁pat ria , ▁as ▁well ▁as ▁oper as ▁by ▁Francesco ▁Caval li ▁and ▁Jean - Ph ili ppe ▁R ame au . ▁He ▁conducted ▁several ▁of ▁his ▁real is ations ▁both ▁in ▁the ▁theatre ▁and ▁in ▁the ▁recording ▁studio . ▁ ▁In ▁ 1 9 6 3 , ▁he ▁composed ▁the ▁original ▁film ▁score ▁for ▁Peter ▁Brook ' s ▁Lord ▁of ▁the ▁F lies , ▁the ▁adaptation ▁of ▁William ▁Gold ing '