Hanging Waters

Dang. I appreciate it! I was trying to figure this out for a while with no luck (still learning), but I can totally see what you mean.
 
Any chance there was a Quarter-Tone thrown in there?

Hey all!!
I’ve been following OCR for a long time and gotten a lot of my musical inspiration from listening to community albums, mostly in the Sonic series. So I figured I would post one of my recent mixes here!
This is partly a self-advertisement, so feel free to remove this post if that’s against a rule, but I’m mostly just looking for feedback on production. I have a lot to learn when it comes to mixing, and I really want to get better so I can create clearer and more cohesive masters. All tips are appreciated!!
But here’s my take on “Rude Buster” from DeltaRune. And if you enjoy it feel free to like/subscribe to my YouTube channel!! I’m working hard on the next remix, and if you like Undertale I think you’re gonna enjoy this one.  
 
 

Full answer: The chord (as part of the entire song struture) is a VI maj, so in the key of the song (C# minor) that would be A major.
As other have said, there is some half step dissonance, although the dissonance isn't a half step above or below the root of the chord, but rather it's below the third of the chord.
The actual pitches she sings are A, B# (C), and C#. The A is the root of the A major, whereas the C# is the third. The B# (C) is just an added dissonance; if you wanna put a name to it, technically the voicing she's singing creates an Amaj (#9) or Amaj (+b3) chord, but those are super ugly words. Contrary to what someone suspected above, it's not actually a minor major chord, but it does sound like minor major because of the B#, which is the major 7th relative to C#.