Yes, I understand your pain. Devs should really add guitars, violins, tubes and other stuff so we can spend our time playing them near fireplaces.)

I successfully played many great pieces. People came into the piano building and beat me senseless, nevertheless.

But if you have to do it, here's how

1.) Hook up a laptop, tablet or smartphone to a cable with two 3.5mm audio plugs. Plug the other one in your microphone socket on PC

2.) Select a fine masterpiece from youtube

3.) Double tap Caps-Lock

4.) Play the youtube piece

5.) Sway left and right to imitate going up and down the keys.

6.) Enjoy getting whacked by players and zombies

And more musical instruments!