This last summer I worked on a project that turned a Raspberry Pi into a light and music show.
The things you will need are:
Raspberry Pi V3
8 Relay Arduino 5v board
9 power outlets
power blocks one fore positive and one for negative
I used python and light show to build my presentation.
Once you get it all wired in you can plug in your lights and action!
Check out my mocked up display.