 Even actors Billy Boyd, Viggo Mortensen, Liv Tyler, Miranda Otto (extended cuts only for the latter two) and Peter Jackson (for a single gong sound in the second film) contributed to the score.Fran Walsh and Philippa Boyens served as librettists, writing lyrics to various music and songs, which David Salo translated into Tolkien's languages.The third film's end song, "Into the West", was a tribute to a young filmmaker Jackson and Walsh befriended named Cameron Duncan, who died of cancer in 2003.