# Display key

You can display all tones of a scale or the current mode on the instrument.

{% hint style="info" %}
In this way, you will know which tones sound great in your song. Or you can learn the scale you have selected.
{% endhint %}

To do so, make sure the instrument is visible.

👉 Tap on the instrument title:

<div align="left"><img src="https://1678064244-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Ftonaly-faqs%2F-Lz70EiahmjhQWpSCG_L%2F-Lz72O3KVemOzNdqT5zN%2Fpaino_switch.jpg?generation=1579609331715498&#x26;alt=media" alt=""></div>

👉 Tap this icon:

<div align="left"><img src="https://1678064244-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lz1ifYhQe3Ixpm7YIt8%2F-LzBZZcJyTsdpFUj2Y1e%2F-LzBarrkz9mpM6phurgW%2Fimage.png?alt=media&#x26;token=fbb21573-15c7-4bbe-8fdd-856411ed73fb" alt=""></div>