ARWEN REVEALED - the Rivendell Theme is often applied to Arwen, especially in TTT & ROTK. But as a 'freethinker' among the Elves, she is supplied with her own material and is given "four subsidiary themes" (The Music of the LOTR Films, pg 44) Arwen Revealed represents Arwen at her 'essence' (my choice of words) rather than in connection with other people or concepts.

The theme is sung using lyrics from the Song of Lúthien.

"EVENSTAR" (Arwen & Aragorn), one of four themes applied to Arwen (see note above), is a love theme that depicts a "mature love...compromised by responsibility" (Doug Adams, CR-TTT liner notes, page 12)

The theme is sometimes sung using lyrics from Evenstar.

"ARWEN'S SONG" - one of four themes applied to Arwen (see note above), is the song heard in the Houses of Healing scene. The scene for which it was originally intended was more directly connected with Arwen therefore and the theme is musically related to the other themes for Arwen. For more information, see "The Music of the Lord of the Rings Films."

(30 second sample)

THE DIMINISHMENT OF THE ELVES - one of four themes applied to Arwen (see note above), represents "the Elves concept of finality, both as it concerns their recession from Middle-earth and their understanding of death." (Doug Adams, CR-FOTR liner notes, page 17) 

The theme is usually sung using lyrics from Gilraen's Song.

LOTHLÓRIEN - represents the culture and people of Lothlórien and Galadriel, herself.

When the melody is sung, those first two lines are from Footsteps of Doom. When the melody progresses past those first two lines and is sung, the source text is Lament for Gandalf (Chorus Text).

AN ELVISH PLEDGE - This three note theme appears twice--once in FOTR and once in TTT--in connection with Elves and their relationship to other races. For more information, see "The Music of the Lord of the Rings Films."

(edited down to three chords)