These works featured some of the earliest electronic effects used by the BBC and highlighted the need for a facility to provide such material.
ðiːz wˈɜːks fˈiːtʃɚd sˌʌm ʌvðɪ ˈɜːlɪɪst ᵻlɛktɹˈɑːnɪk ɪfˈɛkts jˈuːzd baɪ ðə bˌiːbˌiːsˈiː ænd hˈaɪlaɪɾᵻd ðə nˈiːd fɚɹə fəsˈɪlᵻɾi tə pɹəvˈaɪd sˈʌtʃ mətˈɪɹiəl.