▁In ▁ 1 9 2 2 , ▁he ▁began ▁studying ▁eastern ▁and ▁western ▁systems ▁of ▁music ▁under ▁the ▁famous ▁art ▁critic ▁James ▁C ous ins . ▁He ▁was ▁particularly ▁interested ▁in ▁points ▁of ▁contact ▁between ▁the ▁two ▁systems . ▁Ch ag la ▁under to ok ▁several ▁jour ne ys ▁to ▁gain ▁an ▁insight ▁of ▁various ▁eastern ▁systems ▁of ▁music . ▁In ▁ 1 9 2 3 , ▁he ▁travel led ▁from ▁Kar achi ▁to ▁Ira q , ▁via ▁Bal och istan ▁and ▁northern ▁Iran ▁( including ▁the ▁C asp ian ▁Sea , ▁ ▁Te her an , ▁Tab riz ▁and ▁K erm ans h ah ). ▁After ▁tour ing ▁Ira q , ▁he ▁returned ▁to ▁Kar achi ▁by ▁way ▁of ▁Bas ra . ▁In ▁ 1 9 2 8 ▁he ▁qualified ▁from ▁Tr inity ▁College ▁of ▁Music ▁in ▁London . ▁ ▁In ▁ 1 9 2 9 , ▁Ch ag la ▁under to ok ▁an ▁over land ▁journey ▁from ▁Europe ▁to ▁Kar achi ▁to ▁study ▁how ▁far ▁west ▁the ▁influence ▁of ▁eastern ▁music ▁extended . ▁Among st ▁the ▁countries ▁he ▁visited ▁were ▁Germany , ▁Czech oslov ak ia , ▁Hung ary , ▁Turkey , ▁Sy ria , ▁Palest ine ▁and ▁Ira q . ▁Ch ag la ▁gained ▁considerable ▁practical ▁experience ▁from ▁opera ▁houses ▁and ▁sym phony ▁orch est ras ▁along ▁the ▁way . ▁In ▁addition ▁to ▁classical ▁music , ▁Ch ag la ▁became ▁prof ic ient ▁in ▁orch est ral , ▁oper atic ▁classical ▁compos ing ▁and ▁conduct ing ▁of ▁western ▁music .