▁instead ▁offered ▁it ▁to ▁Roy ▁Douglas ▁to ▁write ▁his ▁own ▁music . ▁ ▁Douglas ▁and ▁Ernest ▁Ir ving ▁helped ▁Wal ton ▁complete ▁the ▁bal let ▁The ▁Qu est ▁by ▁his ▁birth day , ▁ 2 9 ▁March ▁ 1 9 4 3 , ▁in ▁time ▁for ▁its ▁premi ere ▁performance ▁only ▁a ▁week ▁later . ▁ ▁Wal ton ▁arranged ▁the ▁V alse ▁from ▁Fac ade ▁for ▁piano , ▁but ▁all ▁other ▁piano ▁arrang ements ▁from ▁the ▁score ▁were ▁made ▁by ▁others , ▁including ▁Douglas , ▁Constant ▁Lam bert , ▁Herbert ▁M urr ill ▁and ▁M á ty ás ▁Se iber . ▁ ▁Douglas ▁worked ▁with ▁Wal ton ▁on ▁the ▁re vised ▁version ▁of ▁Bel sh azz ar ' s ▁Fe ast , ▁but ▁reg rett ed ▁Wal ton ' s ▁decision ▁to ▁use ▁less ▁per cussion ▁than ▁in ▁the ▁original . ▁The ▁vocal ▁score ▁of ▁Tro ilus ▁and ▁C ress ida ▁was ▁largely ▁the ▁work ▁of ▁Roy ▁Douglas , ▁assist ed ▁by ▁Franz ▁Re izen stein ▁in ▁Act ▁III . ▁ ▁Working ▁with ▁Ralph ▁V aug han ▁Williams ▁From ▁ 1 9 4 7 ▁until ▁the ▁elder ▁composer ' s ▁death ▁in ▁ 1 9 5 8 , ▁Roy ▁Douglas ▁worked ▁as ▁Ralph ▁V aug han ▁Williams ' ▁musical ▁assistant ▁and ▁am anu ensis . ▁ ▁His ▁job ▁included ▁producing ▁leg ible ▁copies ▁of ▁R V W ' s ▁scores , ▁and ▁in ▁the ▁process ▁he ▁identified ▁numerous ▁issues ▁of ▁orch estr ation ▁need ing ▁resolution , ▁de ci pher ed ▁R V