interesting change

While trying to improve my program I tried making it so that the color beams created by playing a note never faded away and every time a beam appeared its colour would mix with other pre egsisting beams. This made a very interesting effect and also made the trail left by the ball more visible

Although I thought this change looked very cool, I also thought that it had lost some of its elegance and simplicity. So I dont think I will use this, although I am still not certain!