Comment by yboris

Not as my main computer, but as my digital piano sidekick, a USB output from the piano goes to my Raspberry Pi which runs Pianoteq (makes the piano sound like a $100k piano). Optionally, the Pi lights up some addressable LEDs coinciding with keys.

https://github.com/youfou/pianoteq-pi & https://github.com/whyboris/Digital-Piano-LED