Hi bhushan,
The project is about sound.
There are 3 speakers, from above , high tone, middle tone and base tone.
There are also 3 slides to the left of the speakers, they must be independently able to slide.
for only the high- middle, and base tone.
The sound will be music and I will provide this to you. In the 3 stages.
On the right you see an graphic , the idea is that when the slides are all down there is no sound and no graphic. They are all at 0.
When you slide one slide up, say bas tone, the graphic starts to appear.
This you can do independently by slide.
When all slides are up you here the complete piece of music, high, middle and base tone.
Ton