ván sz ky ▁and ▁Fer enc ▁Sz ab ó ▁( com position ), ▁Er no ▁Sz ég edi ▁( p iano ), ▁and ▁Z olt án ▁K od ály ▁( eth nom us ic ology ). ▁ ▁As ▁a ▁K od ály ▁dis ci ple , ▁he ▁was ▁involved ▁for ▁two ▁years ▁in ▁research ▁about ▁Gy ps y ▁musical ▁culture ▁and ▁published ▁several ▁articles ▁on ▁this ▁subject . ▁ ▁After ▁the ▁Hung arian ▁Revolution ▁of ▁ 1 9 5 6 , ▁H aj du ▁escaped ▁to ▁Paris ▁and ▁continued ▁his ▁studies ▁at ▁the ▁Paris ▁Conserv atoire ▁with ▁D arius ▁Mil ha ud ▁( com position ) ▁and ▁Oliv ier ▁Mess ia en ▁( ph il osoph y ▁of ▁music ), ▁obtain ing ▁the ▁ 1 st ▁prize ▁in ▁the ▁discipline . ▁ ▁Among ▁his ▁class ▁m ates ▁were ▁Gilbert ▁Amy , ▁William ▁Bol com , ▁Philip ▁Cor ner ▁and ▁Paul ▁Mé f ano . ▁ ▁In ▁Paris ▁he ▁met ▁a ▁variety ▁of ▁stim ulating ▁people ▁from ▁the ▁play w right ▁Samuel ▁Beck ett ▁to ▁Prof . ▁Israel ▁Ad ler ▁of ▁the ▁Heb rew ▁University , ▁who ▁brought ▁him ▁on ▁his ▁first ▁visit ▁to ▁Israel ▁in ▁ 1 9 6 6 . ▁ ▁H aj du ▁took ▁up ▁residence ▁in ▁Jerusalem ▁in ▁ 1 9 6 6 . ▁He ▁taught ▁at ▁the ▁Tel ▁Av iv ▁Music ▁Academy ▁from ▁ 1 9 6 6 ▁to ▁ 1 9 9 1 ▁and ▁at ▁Bar - I lan ▁University ▁since ▁ 1 9 7 0 . ▁He