Used in several LotR-related works [1], and probably elsewhere, too.

[1] See https://docs.google.com/viewer?url=http://web.archive.org/web/20070224170815/http://www.lordoftherings-soundtrack.com/ttt_annotated_score.pdf and https://docs.google.com/viewer?url=http://web.archive.org/web/20080916055404/http://www.lordoftherings-soundtrack.com/rotk_annotated_score.pdf