Nocturne of Shadow

The "Nocturne of Shadow" is a song from The Legend of Zelda: Ocarina of Time. This teleportation song transports Link to the area in the back of the Kakariko Graveyard, near the entrance to the Shadow Temple. This is the only teleportation song that is the only way with which Link can travel to a dungeon.

Link can play the "Nocturne of Shadow" on the Ocarina of Time by playing Left-C, Right-C, Right-C, A, Left-C, Right-C, Down-C. The actual pitches of the notes translate as follows: B, A, A, D, B, A, F.

Story
On his quest to awaken the Sage of Shadow, Link travels to Kakariko Village to search for clues. However, as he arrives, he notices that the town is burning, and hastens to the town center, where he finds Sheik. Suddenly, from within the Well of Three Features emerges an evil energy. As it approaches Link, he attempts to battle it with his sword, but is overwhelmed by the power of the evil energy and is knocked unconscious. When he awakens, Sheik reveals that the evil is in fact an enemy named Bongo Bongo, who was sealed at the Bottom of the Well, and has now successfully broken its seal and retreated to the Shadow Temple. Link is taught the "Nocturne of Shadow," which leads to the Shadow Temple.

The Legend of Zelda: Majora's Mask
If Link plays the "Nocturne of Shadow" in Termina Field near the cluster of Dodongos, he receives three Rupees.

Etymology
A Nocturne (French for "nocturnal") is typically the term used for a musical composition that is inspired by, or evocative of, the night, which is appropriate considering the name and nature of the Shadow Temple.