kˈɑːnstənt wʌz bˈɔːɹn ɪn bˌuːkɚɹˈɛst, ɹoʊmˈeɪniə, ænd stˈʌdid piˈænoʊ ænd kˌɑːmpəzˈɪʃən æt ðə bˌuːkɚɹˈɛst kənsˈɜːvətˌoːɹi, ɹᵻsˈiːvɪŋ ðə dʒˈɔːɹdʒ ˈɛnɪskˌuː ɐwˈɔːɹd ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈoːɹ.
Constant was born in Bucharest, Romania, and studied piano and composition at the Bucharest Conservatory, receiving the George Enescu Award in 1944.