Lost silver flute with unique bandmate stickers left on a bench near the fountain at a park in Ann Arbor.

I lost my silver flute while I was at a park in Ann Arbor last Thursday. I remember taking it out to play near the fountain and accidentally left it on a bench. It has a few unique stickers on it that my bandmates put on. I'm really worried about it as it holds a lot of sentimental value to me.