Leadtime to create a light show for a new track is about 2-3 weeks. The more advanced notice the better to ensure enough time.
CUE's experienced Light Show programmers have created hundreds of light shows. The programming process involves uploading the audio, listening through the track while hitting hotkeys to place flash markers, then refining the timing and adding screen content like colors and images.
Teams new to programming should expect a longer learning curve for their first few shows, but the interface is designed to be intuitive for anyone familiar with basic video editing software.