ɔːlðˈoʊ sˈɪŋɪŋ wʌz fɚbˈɪdən, hiː ɐdˈæptᵻd baɪ bˌiːɪŋ mˈoːɹ kˈɑːnʃəs ænd sˈɛnsᵻtˌɪv wɪð ɹᵻɡˈɑːɹd tə hɪz tɛknˈiːk, ænd kəntˈɪnjuːd tə sˈɪŋ wɪð wˈʌn lˈʌŋ fɹʌm nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi tˈuː tə nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi ˈeɪt, wˌɛn ðɪ ˈʌðɚ lˈʌŋ wʌz ˈɔːlsoʊ ˌɑːɹɾɪfˈɪʃəli kəlˈæpst ænd ɹˌiːɪnflˈeɪɾᵻd.
Although singing was forbidden, he adapted by being more conscious and sensitive with regard to his technique, and continued to sing with one lung from 1942 to 1948, when the other lung was also artificially collapsed and re-inflated.