ut ille ux ▁and ▁M st is lav ▁Rost rop ov itch . ▁ ▁He ▁has ▁performed ▁in ▁Royal ▁Conserv atory ▁of ▁Br uss els , ▁Car ac as ▁Teatro ▁Ter esa ▁Car reno , ▁Municipal ▁Theatre ▁of ▁Santiago , ▁Buenos ▁Aires ▁Teatro ▁Col ón , ▁in ▁Paris ▁S alle ▁Cort ot , ▁B am berg ▁Sym phony , ▁La us anne ▁S alle ▁Metro pole , ▁Kon zer th aus , ▁Vienna , ▁etc . ▁He ▁has ▁directed ▁Colombia ▁Sym phony ▁Orchestra ▁since ▁ 1 9 9 6 , ▁and ▁since ▁ 1 9 9 8 , ▁Paris ▁Opera ▁Orchestra , ▁Stuttgart ▁Radio - S inf onie or chester , ▁Bayer ische ▁Staats ph ilar mon ie ▁and ▁many ▁more . ▁In ▁ 2 0 0 3 , ▁he ▁became ▁William ▁Christ ie ' s ▁assistant ▁during ▁the ▁Paris ▁National ▁Opera ▁creation ▁of ▁J . P . ▁R ame au ' s ▁Bor é ades ▁and ▁then , ▁Ar min ▁Jordan ' s ▁with ▁a ▁new ▁interpretation ▁of ▁Moz art ▁Cos ì ▁fan ▁tutte . ▁The ▁very ▁same ▁year , ▁he ▁has ▁been ▁invited ▁to ▁play ▁two ▁rec it als ▁in ▁Colombia . ▁Both ▁have ▁been ▁un anim ously ▁gre et ed ▁by ▁the ▁national ▁press . ▁Since ▁February ▁ 2 0 0 4 , ▁he ▁has ▁been ▁a ▁regular ▁guest ▁at ▁Paris ▁Cer cle ▁de ▁l ' Union ▁Inter al li é . ▁ ▁As ▁a ▁committed ▁artist , ▁Ric ardo ▁Ara u jo ▁has ▁been ▁act ively ▁offering ▁his ▁help