Song of the Hero

The "Song of the Hero" is a playable song in Skyward Sword. It serves as a key to the final Silent Realm, played in a duet with Fi and Link, the former with vocals and the latter with Zelda's harp. The full song contains parts from the classic Zelda theme.

Learning Location and Uses
The "Song of the Hero" is split into four parts. Three of the parts are learned from each of the dragons protecting the three regions of The Surface: Faron, Eldin, and Lanayru. The fourth part is learned from Levias in Thunderhead. Once Link learns the full song, he must play it in the plaza in Skyloft to enter the final Silent Realm and open the way that leads to the Triforce.

Trivia

 * The Song of the Hero contains both the original The Legend of Zelda theme and the opening notes of the Hyrule Field theme from Ocarina of Time.