# Piano

The pitches in Ultrastar are represented by numbers from -60 to 67 with 0 being C4 sound. Because these numbers may mean little to you, the little piano keyboard on the left side of the [*main editor*](/karedi/user-interface/middle-components/main-editor.md) can be helpful.

<figure><img src="/files/hn5PAE6flG4EjJaZRmKu" alt=""><figcaption></figcaption></figure>

## Checking the tone

In the example above we can see that *Can* note's pitch is 5. But what is 5?\
If you take a look on the piano keys you will see that 5 corresponds to F (also called *fa)* soun&#x64;*.* You can also hover your mouse on any key in the piano keyboard to learn what sound it represents.

All C keys have a red dote on them to make them more distinctive.

{% hint style="info" %}
If you are unsure about the meaning of the number representing the pitch of some existing note, you can also just hover your mouse over the note.
{% endhint %}

## Trying out tones

You can also click on any key on the piano keyboard to hear what sound that key represents.

## Hiding the piano

To hide the piano go to the menu and choose *View* -> *Toggle Piano* action (or use `ctrl + b` shortcut).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://karedi.gitbook.io/karedi/user-interface/middle-components/piano.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.