Pixel art: Spotlight

I tried to create a spotlight animation using pixel art. I'm always curious and want to know how they animate spotlights in real life. It really sets the mood of the event. They even change colors depending on the tone of the music and beat.

I saw some buttons and I guess levers in their equipment. I guess that is how they move the lights. I also wonder if they can program each lights and set a specific position with the help of a button.

For this pixel art, I just made a quick animation of it. Hoping that I can make a smoother animation next time.

Here is a little behind the scene of my work.
Creating the beam for the lights.

Completing the structure.

Adding the spotlights with the use of circle shape.

Coloring the background and setting up the stage.

Adding the lights with different positions per frame.