As a performer, he also excelled as an organist, ending his career with two organ concerts at the cathedrals of Notre Dame in Paris and Chartres Cathedral in France, in 1975
æz ɐ pɚfˈoːɹmɚ, hiː ˈɔːlsoʊ ɛksˈɛld æz ɐn ˈɔːɹɡɐnˌɪst, ˈɛndɪŋ hɪz kɚɹˈɪɹ wɪð tˈuː ˈɔːɹɡən kˈɑːnsɚts æt ðə kɐθˈiːdɹəlz ʌv nˈɑːɾɚ dˈeɪm ɪn pˈæɹɪs ænd ʃˈɑːɹɾɚz kɐθˈiːdɹəl ɪn fɹˈæns, ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈaɪv