ˌɔn klˈoʊs lˈɪsənɪŋ, ɹᵻkˈoːɹdɪŋz ʃˈoʊ ðæt hˈuːʃ tʃˈoʊz tʊ ɪntˈɛnʃənəli ˌʌndɚsˈɪŋ, nˈɛvɚ pˈʊʃɪŋ hɪz ˌʌpɚ ɹˈɛdʒɪstɚ ɔːɹ ɪnflˈeɪɾɪŋ hɪz tˈoʊn bᵻjˌɔnd ðə lˈɪmɪts ʌv ɪts nˈætʃɚɹəl ɹˈɛzənəns.
On close listening, recordings show that Hüsch chose to intentionally 'under-sing', never pushing his upper register or inflating his tone beyond the limits of its natural resonance.