How can I change the key of my Playback Personalizado?

In order to change the key of your Playback Personalizado, you just need to click on the arrows next to the "Add to cart" button.

When you have selected your key, click on "Recarregar" and your new Playback Personalizado will be generated accordingly.

What happens if I've already purchased the tracks?

From your account, under "Meus arquivos", you just need to click "Alterar". The "classic" interface will show up and from there, the instructions are the same.