DELTARUNE / I Need Help Solving This Musical Mystery!

Made this video to bring some attention to a track I think needs more analysis. Unfortunately, I lack the musical/editing background to figure out what is being portrayed here, so any and all help from the community is greatly appreciated!

Link to download pianpian (be warned, music starts playing automatically): https://deltarune.com/assets/audio/pi...

Patreon:
  / jarujaruj  

Socials:
  / deathbattlezeal  
  / jarujarujarujarujaru  
https://www.tumblr.com/jarujaruj

Chapters:
00:00 Intro
01:17 Background on Song
03:08 Base Song
05:00 Half Speed
06:56 Quarter Speed
10:32 1/8th Speed
11:10 2x Speed
11:46 4x Speed
12:12 8x Speed
12:54 Reversed
13:53 Reversed Half Speed
15:24 Reversed Quarter Speed
18:20 Reversed 2x Speed
18:46 Reversed 4x Speed
19:02 Reversed 8x Speed
19:45 0.666 Speed
21:16 6.66x Speed
21:34 Outro