æz ɐ hˈɑːɹpsɪkˌɔːɹdɪst, ˌɔn fˈɛbɹuːˌɛɹi twˈɛnti, nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi ˈeɪt, hiː pɑːɹtˈɪsᵻpˌeɪɾᵻd ɪnðə kˈɑːɹnəɡi hˈɔːl pɹəmˈɪɹ ʌv dʒˈeɪ.ˈɛs. bˈɑːxs kˈɔfi kæntˈɑːɾə ˌʌndɚ ðə dᵻɹˈɛkʃən ʌv wˈɔltɚ dˈæmɹɑːʃ; ðɪ ˈʌðɚ pɚfˈoːɹmɚz ˌɔn ðæt əkˈeɪʒən ɪŋklˈuːdᵻd sˈɪŋɚz tʃˈɑːɹlz kˈʌlmən, hˈɛlən dʒˈɛpsən, ænd lˈɔːɹəns tˈɪbɪt; flˈuːɾɪst fɹˈænsɪs blˈeɪsdɛl; vˈaɪəlɪnˌɪsts dʒˈæʃə hˈaɪfɛts ænd sˈæʃə dʒˈækɑːbsən; vˈaɪəlɪst lˈeɪɑːn bˈɑːɹzɪn; sˈɛlɪst ɡˈæspɑːɹ kæsˈɑːdoʊ; ænd dˈʌbəl bˈeɪsɪst ˈænsɛlmi fˈɔːɹɾiɚ.
As a harpsichordist, on February 20, 1938, he participated in the Carnegie Hall premiere of J.S. Bach's Coffee Cantata under the direction of Walter Damrosch; the other performers on that occasion included singers Charles Kullman, Helen Jepson, and Lawrence Tibbett; flutist Frances Blaisdell; violinists Jascha Heifetz and Sascha Jacobsen; violist Léon Barzin; cellist Gaspar Cassadó; and double bassist Anselme Fortier.