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.
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.