This one is seriously cool.
We Together is a nifty little zombie film by Henry Kaplan, with music by Kerron Hurd, that focuses on a zombie who has a very strange reaction to hearing music. The final little twist at the end makes it a real show stopper.
I don’t want to spoil it past that, so here you go. Fair warning, it gets a good bit gory, so maybe don’t be eating while you enjoy.