Is it possible to get a keypressed position instead of its keyCode or char?

I'm building a musical piano in javascript that allows people to play using their computer keyboards. I've mapped the notes of a piano to a QWERTY keyboard layout. However, if someone has a different keyboard layout, for example AZERTY the order of the notes is wrong.

Is it possible to get the keypressed position rather than the keycode? I'm not interested in the value of the key, just it's position on the keyboard.

If this is possible the piano would work globally and I wouldn't have to create separate key maps for all different language types.