So there is a pending run that uses different audio from the game one. I assume you can just swap out files in the “music” folder to achieve this… but personally, I would consider this like a kind of hacking and I wouldn’t allow it. Imagine this example: what if someone put something like a metronome into the game by swapping audio files, to aid with the frame-perfect flying glitch timing? In a game such as this where you can get very close to frame perfection (hold right for great justice), this is probably feasible. I would definitely consider that cheating.
I know of another game where people have banned WRs due to edited audio (or even textures)– Mario Kart Wii. In that community it was decided that all changes to the game, no matter how small (audio or just some textures) are considered cheating, and that’s also my stance.