ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti, hiː tˈʊk ˌoʊvɚ ðə mjˈuːzɪkəl dᵻɹˈɛkʃən ʌvðɪ ˈɔːɹtf; fɹʌm nˈaɪntiːnhˈʌndɹɪd sˈɛvənti θɹˈiː tə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti ˈeɪt hiː dᵻɹˈɛktᵻd æt ðə pˈæɹɪs ˈɑːpɚɹə, ænd ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi ˈeɪt ænd nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi nˈaɪn wʌz pɹəfˈɛsɚɹ ʌv ˌɔːɹkᵻstɹˈeɪʃən æt ðə pˈæɹɪs kənsˈɜːvətˌoːɹi.
In 1970, he took over the musical direction of the ORTF; from 1973 to 1978 he directed at the Paris Opera, and in 1988 and 1989 was Professor of Orchestration at the Paris Conservatory.