[zhamisen]

Yours is this one from github, right?

https://github.com/juliango202/jijimaku

I found it very nice. Thank you for developing this solution :)

[pgz]

I have not open-sourced my code since it's a gross hack I did in one afternoon.

It looks exactly like the screenshot of that project. Very interesting that I thought of the same solution without knowing jijimaku.