Hello!
I just did an realized a small game called Koto ?.
Koto ? is a zen musical game, in which you play the koto while listening to the wind gently blowing through the leaves.
It's a small project made in a bit more than a day, I hope you find it relaxing and fun.
It's free, and browser-based. It works best on Chrome from what I've seen!
Enjoy!
https://floriandcp.itch.io/koto