"After having practiced elsewhere for a while, I wanted to choose another location with interesting differences. This community has them in its [cite unique differences, such as a strong musical heritage], and since I'm very interested in that, I know it's a community in which I'll really enjoy living and contributing to."

If you've grown up in the community, you have it made: all you need do is tell them what you already know and explain how you intend to remain close with your family geographically as well as by maintaining a loving relationship. If you're from elsewhere, you should cite the beneficial aspects of the community (you could simply visit the town's marketing propaganda). However, you should find a way to explain how the community serves your interests and hobbies.

"There are many recreational areas, parks, and other outdoor venues in the community, and I would like to take advantage of the opportunities these areas offer."