Thanks for the feedback.
One of the instruments in Poem Shuffle is supposed to be a square synth, so it could be that you're hearing, but the drum track could also be playing invalid notes, because it's basically using garbage data (MuseScore thought the square synth track was actually a drum because of the soundfont I was using and so it gave it an ID of 0 when I exported the MIDI, but I thought it sounded good so I just duplicated the track, keeping one as the drums and making the other sound like how it was supposed to originally. That's why the drums don't really make sense at some points). I'll have to do some experimenting with that.
And yeah I probably should have lowered the volume for some of the tracks in the DDLC song lol. It didn't translate over so well from the MIDI.
Another thing I'd say is if you want to use a square synth, you probbly want to turn it down and do a pitch bend trick where you copy, paste the channel for the square, set it to Sawtooth in the midi and raise the pitch a little bit
staying up till' 4:00 was my pastime