Seems like Embers Fade don't like the phone haha...no one has spoken to them have they?
Bottom line: Between Commoname and Embers Fade one of the bands have to bring a drum kit. There's a drummer in each band with a kit so it shouldn't be a big deal. If neither bring a kit, then that's like the guitar players showing up with no amp or guitar. Each musician has to be responsible for their own gear!! If they bring no drums, then they won't be able to play...no one wants that so for satan's sake figure it out TODAY, not 5 mins before you go on stage!