Flute
For Zelda II The Adventure of Link on the Nintendo Entertainment System (NES).
Official art

From the official guides
You will play the legendary mysterious music of Hyrule. The sound rouses old powers.
Plays a mysterious tune handed down in Hyrule. They say its sound awakens an ancient power.
Long it has been told that the music of this ancient flute has powers both mysterious and strong.
Beyond Ironknuckle and the walk-through wall, he will find keys and an ancient flute, which is the prize of this island palace. With the flute, Link can reach the southeast of Hyrule and Old Kasuto.
The sound of this flute can get rid of the thing blocking the road on the way to Palace 6.
Palace 5. A mysterious item whose beautiful sound is said to wake an ancient power. Press the B Button on the overworld map to use it.
A flute handed down in Hyrule since long ago. Its sound is said to call even a god and drive off fearsome monsters.
What it does
One of the eight treasures. Link keeps it for the rest of the game.
Played on the overworld. It drives off the river monster on the bridge in east Hyrule and brings the hidden sixth palace up out of the desert.
Where it is
Found in Palace 5.
