ril ▁Scott ▁and ▁H . ▁B alf our ▁Gard iner ▁at ▁the ▁Hoch ▁Conserv atory ▁in ▁Frankfurt , ▁where ▁he ▁studied ▁for ▁almost ▁five ▁years ▁under ▁the ▁guidance ▁of ▁the ▁German ▁professor ▁of ▁composition ▁I wan ▁Kn orr . ▁Qu il ter ▁belonged ▁to ▁the ▁Frankfurt ▁Group , ▁a ▁circle ▁of ▁compos ers ▁who ▁studied ▁at ▁the ▁Hoch ▁Conserv atory ▁in ▁the ▁late ▁ 1 8 9 0 s . ▁ ▁His ▁reputation ▁in ▁England ▁rest s ▁largely ▁on ▁his ▁songs ▁and ▁on ▁his ▁light ▁music ▁for ▁or chestra , ▁such ▁as ▁his ▁Children ' s ▁O vert ure , ▁with ▁its ▁inter w oven ▁nur ser y ▁rh yme ▁t unes , ▁and ▁a ▁suite ▁of ▁music ▁for ▁the ▁play ▁Where ▁the ▁Rain bow ▁End s . ▁He ▁is ▁noted ▁as ▁an ▁influence ▁on ▁several ▁English ▁compos ers , ▁including ▁Peter ▁War lock . ▁ ▁Qu il ter ▁enjoyed ▁a ▁fruit ful ▁collaboration ▁with ▁the ▁ten or ▁Ger v ase ▁El w es ▁until ▁the ▁latter ' s ▁death ▁in ▁ 1 9 2 1 . ▁In ▁November ▁ 1 9 3 6 , ▁Qu il ter ' s ▁opera ▁Julia ▁was ▁presented ▁at ▁Cov ent ▁Garden ▁by ▁the ▁British ▁Music ▁D rama ▁Opera ▁Company ▁under ▁the ▁direction ▁of ▁Vladimir ▁Ros ing . ▁ ▁As ▁a ▁hom osex ual , ▁he ▁found ▁it ▁difficult ▁to ▁co pe ▁with ▁some ▁of ▁the ▁press ures ▁which ▁he ▁felt ▁were ▁im posed ▁upon ▁him , ▁and ▁eventually ▁d eter ior ated ▁into ▁mental ▁ill ness