Hey there! We're 4 months away from tying the knot and we need to nail down the reception. My fiance and I are pretty laid back people and our wedding is going to be a casual affair for about 175 guests. It's going to be rustic/elegant/barn-y/burlap-and-lace affair. We're classy folk

I had the idea of renting a jazz ensemble from the local college, and having them play during the reception. I have a lovely fantasy of people swing/line dancing to classy jazzy music, but I don't know how much of a reality that could be. I want to avoid a DJ because I want to keep it clean and classy, and keep the casual feel of the reception.
The other option is to do no music at all. If we chose that, I'm not sure how we would do the first dance/daddy-daughter dance/etc. Thoughts??