Backing Track Sphere

In my proposal I wanted to have a way of representing a backing track should someone wish to have one whilst playing the synthesiser. I incorporated one using as a rendered 3D sphere that pulses to the music. I did this by having the same setup as a 3D rendered bar, but changed the shape to render as a sphere. However, I did have to use a scale object to limit how much the sphere pulsed as the sphere did get very big if the song was too loud. By limiting the scale of the amplitude, it made the pulse much more under control.

After incorporating the backing track sphere, I realised it looked strange only having 1 sphere. To help keep the balance, I added another sphere, however this was controlled by the amplitude of the sythesiser. This worked well with the 3D bars, as sometimes the synthesiser audio would have some decay; but due to the nature of how the control using the keys work, when you release the keys, it doesn't show the decay of the music. This will allow a visual element which will show the decay.

Two rendered spheres. The top is controlled by amplitude of synthesiser, bottom is controlled by loaded in track.