Ward choir footholds save them from lost-sheep slippery-slopes

I love it when LOTS of people come out to sing in ward or stake choir. But it can cause some problems. Usually, the more people you have, the more likely you are to have some singers who aren't as strong. Now, I'd never EVER discourage someone from singing. I just think that's mean, wrong, and robs them of the wonderful joy of expressing themselves and their testimony in a very unique and satisfying way. As a ward choir arranger, that means I have to take responsibility for the various levels...