Because the music was part of a "work made for hire" agreement with CBS, Constant derived no ongoing income from it.
bɪkˈʌz ðə mjˈuːzɪk wʌz pˈɑːɹt əvə "wˈɜːk mˌeɪd fɔːɹ hˈaɪɚ" ɐɡɹˈiːmənt wɪð sˌiːbˌiːˈɛs, kˈɑːnstənt dᵻɹˈaɪvd nˈoʊ ˈɑːŋɡoʊɪŋ ˈɪŋkʌm fɹʌm ɪt.