I also think it would be better if we could modify and select which mapping we wanted to use. If we can't listen or find any pattern, it would just make most people nauseous. It would be awesome if we could split and use parts of the generated sound to create music, btw, if OP hasn't planned that yet. It might be a minor nitpick, too, but there seems to be a delay between when the button is clicked and when the audio is played.
this is cool but i have already done this.
Can you share it too?