Also, keep in mind what you're lighting for. If its a band concert ,most of the audience will be coming to see exactly that, not a sound and light show. I don't know what exactly your goals are, or what parameters have been set for you. You don't want to write a bunch of cool effects that only wind up detracting from the show.
what I'd suggest, is maybe coming up with slightly different colors for a back cyc-wash for different songs, or slightly different looks nothing too drastic, and probably no cues within the songs, unless you clear
it with your band director.
so basically don't go over board but by all means do it up. But i'd recommend aiming for classy before aiming for cool.