But you said something about browser inspector, I found it with the F12 key. I'm overwhelmed by all the information, I have to find my way around first.
Hi
I updated the right bottom corner with a keyboard.
The keyboard shows which piano keys occur in the harp.
The red is the root key and the blue are the keys of the scale you play on the harp.
...and it adapts to your choice of your red "root key"-button or your blue "scaling"-button.