Hi 
nice hacker look !
You can try 2 software that you will probably like :
cava - Visualize audio input in terminal.
mocp - Music On Console
both of them my side :
For a magic hacker effect you can also run the Bluetooth monitor (once sound playing over Bluetooth, or at last one bt mouse is connected)
sudo btmon :
A nice thing also :
curl wttr.in/moon :
curl wttr.in/chicago :
Don't hesitate to share your screenshots also here :
https://ubuntu-mate.community/t/my-desktop-today/
Enjoy Ubuntu Mate !