35978d12_Zelda___Majora_s_Mask____Songs__Where_to_play
[How to play] Elegy of Emptiness [How to learn] Learning this song is your reward for infiltrating the Ancient Castle of Ikana and killing Igos du Ikana... again.... That's really all there is to it. It's the journey to the battle that is the hard part, so see the Ikana Canyon walkthrough if you get stuck on it. [Where to play] 
This song is pretty neat. When you play it as human Link, a life-sized statue of a Kokiri will appear where you were standing when you played the song (but it is a very creepy looking statue....) If you're wearing the Deku, Goron or Zora mask, though, you will create a statue of either a deku guard, Darmani or Mikau. All these statues have one thing in common, creepiness. To use these statues effectively, create them while standing on a switch that won't stay down on it's own. Since deku Link can't hold down a switch, neither can the statue. So just use the human, goron and zora version. They're all you'll need.
The Legend of Zelda : Majora's Mask -- Songs
Where to play