. . . . "1986Z"^^ . . "1961Z"^^ . . "0022932" . "Altman, Sean"@en . . "American musician and songwriter" . "Sean Altman (born May 9, 1961) is an American musician and songwriter. He is a founder and former lead singer of the singing group Rockapella and a pioneer of the modern a cappella movement."@en . "1961-05-09Z"^^ . "solo_singer" . "Sean Altman"@en . "1986Z"^^ . . . . . . . . . . . . .