Thanks for the detailed reply, fuzzylogician!
I have emailed the department already, as you suggested, but I got an out-of-office autoreply, and I have no idea when I'll hear back. Plus, I've heard that the school isn't necessarily prompt about responses, which is why I thought I would post here as well.
I just read back over my original post and realized I didn't say this, but I will be attending grad school in the UK. I am doing a two-year taught MA program that combines linguistics with intensive language study (Korean). My program doesn't start until the end of September, and I don't think I will find out which courses I will be taking for quite a while. The only two courses I am pretty sure I will be taking early on are Phonology and Syntax. The rest is up in the air.
This was my thought process as well. The course doesn't require a background in linguistics, so I know I should be okay, but I would prefer to make it a little easier on myself if possible. Not only am I starting graduate studies, but I'll be moving to a different country as well. I'd like to minimize stress wherever I can.