▁of ▁World ▁War ▁II ▁Category : Re cip ients ▁of ▁the ▁Dist ingu ished ▁F lying ▁Cross ▁( Un ited ▁Kingdom ) <0x0A> </s> ▁Math ieu ▁D uf our ▁is ▁a ▁French ▁fl ut ist ▁who ▁is ▁the ▁principal ▁fl ut ist ▁of ▁the ▁Berlin ▁Phil harm onic . ▁ ▁Early ▁life ▁D uf our ▁began ▁playing ▁fl ute ▁at ▁the ▁age ▁of ▁ 8 . ▁He ▁studied ▁under ▁Made le ine ▁Ch ass ang ▁and ▁Max ence ▁Lar rie u ▁at ▁the ▁Lyon ▁Conserv atory ▁in ▁Lyon , ▁France . ▁ ▁Career ▁D uf our ▁was ▁appointed ▁principal ▁fl ute ▁of ▁the ▁Or ch estre ▁National ▁du ▁Capit ole ▁de ▁Toul ouse ▁in ▁ 1 9 9 3 , ▁and ▁then ▁held ▁the ▁same ▁position ▁with ▁the ▁Paris ▁National ▁Opera ▁in ▁ 1 9 9 6 . ▁He ▁plays ▁on ▁a ▁Yam aha ▁Y FL - 9 9 7 ▁fl ute . ▁ ▁D uf our ▁was ▁appointed ▁principal ▁fl ute ▁of ▁the ▁Chicago ▁Sym phony ▁in ▁ 1 9 9 9 ▁by ▁Daniel ▁Bar en bo im . ▁He ▁briefly ▁left ▁in ▁September ▁ 2 0 0 9 ▁to ▁play ▁principal ▁fl ute ▁with ▁the ▁Los ▁Angeles ▁Phil harm onic , ▁though ▁later ▁stated ▁he ▁had ▁joined ▁them ▁on ▁a ▁one - year ▁trial ▁basis ▁and ▁was ▁able ▁to ▁hold ▁positions ▁with ▁both ▁orch est ras . ▁He ▁would ▁later ▁return ▁to ▁Chicago ▁in ▁January ▁ 2 0 1 0 . ▁He ▁joined ▁the ▁Berlin ▁Phil harm onic ▁as ▁principal ▁fl