mˈæsi ˌɛndʒɪnˈɪɹd ænd mˈɪkst sˈɛvɹəl pɹˈɑːdʒɛkts fɔːɹ pɹədˈuːsɚ ɹˈɪk ɹˈuːbɪn ˌɔn hɪz lˈeɪbəl ɐmˈɛɹɪkən ɹᵻkˈoːɹdɪŋz, ɪŋklˈuːdɪŋ dʒˈɑːni kˈæʃᵻz ˈælbəm ʌntʃˈeɪnd, wˌɪtʃ wˈʌn ɐ ɡɹˈæmi ɐwˈɔːɹd fɔːɹ bˈɛst kˈʌntɹi ˈælbəm ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti sˈɛvən.
Massy engineered and mixed several projects for producer Rick Rubin on his label American Recordings, including Johnny Cash's album Unchained, which won a Grammy award for Best Country Album in 1997.