> For the complete documentation index, see [llms.txt](https://karedi.gitbook.io/karedi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://karedi.gitbook.io/karedi/user-interface/middle-components/piano.md).
# 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.
## 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)* sound*.* 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).
---
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