The Recorder, also known as the Whistle, is an item from The Legend of Zelda.
The Legend of Zelda
The Recorder is the main item found in the fifth dungeon of the game, Level 5: The Lizard. It has three known uses, only two of which are required to complete the game; the last one is completely optional.
DIGDOGGER HATES CERTAIN KIND OF SOUND
The first use of the Recorder is also the main one. If played while Link is fighting a Digdogger, the Digdogger will shrink into a much smaller version of itself. Link can defeat this mini-version of Digdogger with his Sword. It is impossible to defeat Digdogger without using the Recorder to weaken it first.
Level 7 Entrance
The second use of the Recorder is very specific and is only needed once. On the western side of Hyrule, there is a Fairy Fountain that does not house a Fairy. If Link plays his Recorder while on this screen, it will reveal the entrance to the seventh dungeon of the game, Level 7: The Demon. If Link ever needs to re-enter this dungeon at any point in the game, the Recorder will work everytime.
The final thing the Recorder can do for Link is this: when played in the Overworld, Link will be warped to the entrance of a dungeon that he has previously completed. The destination is determined by which direction Link is facing while using it, making the Recorder a very effective way of travelling across the overworld.
- In BS The Legend of Zelda, the Recorder is replaced by an Ocarina. It acts identically, despite being a different instrument.