The reason there's only one instrument track is because I really tried to add another but it always overlapped with the main one, so I had to do with just one bland track.
It's not that hard once you understand its twist (which the title is genuinely hinting at).
1093-0000-005D-7DE5
Only thing that may occur is that you can get stuck at one point, I just realized.
Eh I'm not reworking that level just for that, if you're clever enough to enter the last part of the level without something to kill yourself with you lost anyways.