Anniversary Party for 50th

Looking for ideas. We will celebrate in January and I want spectacular, but not spectacularly expensive.

I plan on a decorated sheet cake from Costco, but that’s hardly enough. It will be a brunch from (maybe) 11 to 1. I need ideas for finger food, beverages and decor.

Should I have music! I’m not sure how many people will be able to attend as many live out of state.