I think once the intro song turns finishes, it would turn off the lights that you want to leave static. The scheduler could certainly handle the intro song.
Now to leave the lights on for the next few hours I think any other song you do or time would need to have them specifically on for the duration. Maybe try a two or three cell animation only sequence that is several minutes long and tell LSP to loop it x number of times. They had put a small delay between songs in the scheduler, but it might be really short now and not cause a noticable affect on the lights.
Not sure if there was an option to NOT turn off the lights at the end, might have to poke around for that one in the configuration screens.
Alan