The song is notable for its thunderstorm and environmental sound effects added by Wangberg in Los Angeles; he had been invited by McCartney to mix and sequence the Ram album in any way he saw fit, and he copied the thunder from a monaural film soundtrack, then fashioned an artificial stereo version of it for the song.
ðə sˈɔŋ ɪz nˈoʊɾəbəl fɔːɹ ɪts θˈʌndɚstˌoːɹm ænd ɛnvˌaɪɹənmˈɛntəl sˈaʊnd ɪfˈɛkts ˈædᵻd baɪ wˈæŋɡbɜːɡ ɪn lˌɑːs ˈændʒəlɪs; hiː hɐdbɪn ɪnvˈaɪɾᵻd baɪ mə kˈɑːɹtni tə mˈɪks ænd sˈiːkwəns ðə ɹˈæm ˈælbəm ɪn ˌɛni wˈeɪ hiː sˈɔː fˈɪt, ænd hiː kˈɑːpɪd ðə θˈʌndɚ fɹʌm ɐ mˈɑːnɔːɹəl fˈɪlm sˈaʊndtɹæk, ðˈɛn fˈæʃənd ɐn ˌɑːɹɾɪfˈɪʃəl stˈɛɹɪˌoʊ vˈɜːʒən ʌv ɪt fɚðə sˈɔŋ.