Who: Grand Rapids drummers and their friends / family. Everyone is welcome to come, you don't have to be a great drummer, or have your own drum. Bring a pot, bucket, whatever you can find, it will probably sound pretty cool in the mix. Why: Because it's fun! What: Drumming. Bang a drum, shake an egg, tap a tambourine, or tap your foot. We drum, and we drum together. We've been playing around with a few different methods: * Freestyle - everyone plays what they want but respects the group be …