. "1991-04-15T20:00:00"^^ . "symphony orchestra performance" . . . . "There was a pre-concert lecture given by Michael Tippett at 6:45.\r\nNEW YORK PREMIERE of Sir Michael Tippett's BYZANTIUM, a Carnegie Hall Centennial Commission\r\nSee Recordings, CDs Binder 1 (Only Byzantium recorded at Carnegie Hall)." . . . "Chicago Symphony Orchestra" . .