I've noted the same problems when trying to choose music for Friday night Taekwondo classes. Any student is allowed to bring music they like, because the Friday class is more casual. If the group doesn't like one CD, we try another. But the CDs can't have swear words and that makes it very hard to choose something, even from our collection. And we're not "young punks" any more. I'm especially annoyed that we can't introduce this group to the great fun of ska music, because all our CDs have one or two songs with a swear in it. I keep meaning to make a mix CD of swear-free songs, but haven't had time yet.