, ▁and ▁at ▁age ▁five , ▁became ▁the ▁young est ▁solo ist ▁ever ▁to ▁perform ▁with ▁an ▁or chestra ▁at ▁the ▁Sydney ▁Opera ▁House , ▁as ▁well ▁as ▁the ▁Queensland ▁Conserv atory ▁and ▁the ▁International ▁Convention ▁in ▁Br is b ane . ▁ ▁Gray - C ab ey ▁has ▁recorded ▁a ▁CD ▁together ▁with ▁his ▁family . ▁They ▁perform ▁pieces ▁by ▁J . ▁S . ▁Bach , ▁Hay dn ▁and ▁V ival di , ▁among ▁others . ▁The ▁CD ▁also ▁contains ▁record ings ▁of ▁him ▁playing ▁when ▁he ▁was ▁ 4 ▁years ▁old . ▁ ▁Gray - C ab ey ' s ▁parents ▁started ▁Action ▁in ▁Music ▁( A . I . M .), ▁a ▁project ▁intended ▁to ▁help ▁children ▁develop ▁their ▁musical ▁tal ents ▁and ▁give ▁them ▁opportun ities ▁to ▁perform ▁in ▁other ▁countries . ▁The ▁money ▁raised ▁from ▁the ▁concert s ▁are ▁don ated ▁to ▁hosp it als ▁and ▁or phan ages ▁in ▁those ▁countries . ▁ ▁Act ing ▁Gray - C ab ey ▁made ▁his ▁feature ▁film ▁debut ▁as ▁Jo ey ▁D ury ▁in ▁Lady ▁in ▁the ▁Water . ▁ ▁His ▁career ▁in ▁television ▁began ▁in ▁December ▁ 2 0 0 1 . ▁He ▁appeared ▁on ▁My ▁W ife ▁& ▁K ids ▁playing ▁the ▁rec urr ing ▁role ▁of ▁Franklin ▁Alo ys ius ▁M um ford . ▁He ▁also ▁acted ▁in ▁roles ▁in ▁television ▁series ▁including ▁Grey ' s ▁An atom y , ▁C SI : ▁Miami , ▁C SI : ▁Crime ▁Sc ene ▁Investig ation ▁and ▁Ghost ▁Wh is