Thanks for playing!
Choosing to accept all modifiers is the safe option and it's not a bad strategy. I didn't really tweak the parameters from the first ones that sort of worked, but more on that below.
Your music folder setup sounds extremely cursed. One thing I knew that would be a problem was that some people just don't keep music locally anymore, preferring to rely on streaming. It only occurred to me much later that weird music folder layouts would also be a problem.
I agree that it would have been cool to have some "silly" parameters. My initial thought behind exposing everything was that I knew I wouldn't have time to tweak them so I figured I'd just dump that on the player. I started to think about silly parameters like you mentioned very late in the jam, but by the time I did I was pretty tired and more or less feature frozen so the chance of developers burning down the office is the only one that made it in.
Early on I thought about putting in mechanics to prevent players from just sitting there with no devs, but I couldn't think of anything that would work well and be doable in the time I had.