I know others will chime in on this but I will take a stab at it.
Back in the earlier day I did this. Don helped me out mentioning to make a background (animation) sequence (LAS file) and have it scheduled to run the whole time as a background sequence. The background sequence will take over when your show isn't running. I may be off a little on this but others will chime in soon.
Oh, and welcome to the forum and this crazy hobby.
I said that? Wow.
If you have a sequence running in the background tab, and it has any of the same channels that you are using in your show, those channels will conflict, and not work as expected.
For example, if you wanted to create a background sequence to have the lights on your roof always cycling between colors, you could do that. However, if you were to use those channels in another sequence, you would have conflicting channels. The results would be unpredictable, changing every time.
When you schedule a show there is a button you can enable that will have the lights on when a show is not running. This is my 1st year so I haven't seen it work yet, but, as far as I can tell it just randomaly turns lights on and off, flicker or whatever. I don't believe it turns them all on at full brilliance tho.
If, for example, you wanted to run a 20 minute show at the top and bottom of the hour, you do it several ways.
Though one way would be to create a show with your songs. (Let's say 5, 4m 10s songs) These songs would be placed in the musical tab.
Then, in the musical tab, place an animation sequence that is over 10 minutes long.
Now schedule your show for 30 minutes in length.
When a show starts your sequences in the musical tab would play in order. (Make sure you didn't randomize them in the show editor.) Then when the musical sequence are done, you the animation sequence would play. Since it is over 10 minutes in length, it would play past the time for your next show to start.
So what happens at the bottom of the hour? LOR will stop an animation sequence when a show it over. A musical sequence would finish playing. Since you would have an animation sequence playing it would stop, and the next show would start.