This became the standard performing edition until 2000, when Gershwin specialist Jack Gibbons made his own restoration of the original orchestration of An American in Paris, working directly from Gershwin's original manuscript, including the restoration of Gershwin's soprano saxophone parts removed in Campbell-Watson's revision.
ðɪs bɪkˌeɪm ðə stˈændɚd pɚfˈɔːɹmɪŋ ᵻdˈɪʃən ʌntˈɪl tˈuː θˈaʊzənd, wˌɛn dʒˈɜːʃwɪn spˈɛʃəlˌɪst dʒˈæk ɡˈɪbənz mˌeɪd hɪz ˈoʊn ɹˌɛstɚɹˈeɪʃən ʌvðɪ ɚɹˈɪdʒɪnəl ˌɔːɹkᵻstɹˈeɪʃən əvən ɐmˈɛɹɪkən ɪn pˈæɹɪs, wˈɜːkɪŋ dᵻɹˈɛktli fɹʌm dʒˈɜːʃwɪnz ɚɹˈɪdʒɪnəl mˈænjuːskɹˌɪpt, ɪŋklˈuːdɪŋ ðə ɹˌɛstɚɹˈeɪʃən ʌv dʒˈɜːʃwɪnz səpɹˈɑːnoʊ sˈæksəfˌoʊn pˈɑːɹts ɹᵻmˈuːvd ɪn kˈæmbəlwˈɑːtsənz ɹᵻvˈɪʒən.