Rescue

This theme is only hinted at in Fellowship (one person, writing before the other movies came out, referred to it as the "Moth" theme), doesn't get a full statement until late in Two Towers, and goes on to several grand realizations in Return. I can't imagine where Shore got the idea to have a major theme around the concept of unexpected good fortune, but it certainly works. The theme shows up whenever evil plans are upended by the sudden appearance of someone or something unexpected: the moth who engineers Gandalf's rescue from the tower, the ents attacking Isengard, the Rohirrim breaking the siege of Minas Tirith.

Occurrences:

	The moth appears in Gandalf's captivity in Orthanc. This first statement of the theme is otherworldly and not heroic.
	As the Uruks make camp next to the forest, the hobbits hear strange sounds, and Merry realizes the trees are alive. The theme is hinted at in the background.
	The ents attack Isengard. The theme here is ethereal, then martial and assertive — the first full statement.
	Aragorn proposes to Théoden that they ride out from Helm's Deep. The theme sounds first quiet, then firmer, then heroic.
	Word goes out to the Rohirrim that they are to ride to the aid of Minas Tirith; "Oaths you have taken; now fulfill them all."
	Theoden's unforgettable striking of the lances with his sword. The theme is heard slowly, twice.
	The charge of the Rohirrim [in solo fiddle, then brass].
	The eagles appear before the gates of Mordor. The theme now recalls its first appearance, using a solo soprano voice.