Lost silver Yamaha Alto Saxophone with a slightly dented bell at a picnic area during a music festival in Southern Illinois.

I think I left my silver saxophone at a picnic area while attending a music festival last weekend in Southern Illinois. I remember taking it out to play a few tunes with some friends, but I can't seem to find it now. It's a Yamaha Alto Saxophone with a slightly dented bell, and I would really love to get it back!