Here are instructions on how to use Evolution Soundtrack on Trails from Zero Western PC Release

[digitalhaack1981]

I wrote up a quick guide on how to add the evo music to the game. https://www.reddit.com/r/Falcom/comments/xrq6a1/here_are_instructions_on_how_to_use_evolution/

I also made a quick video to show it does work - https://youtu.be/jyz0SsGNuWk

Hope this helps some of you who are interested in it! :)

[Bwil]

As has already been mentioned in your Reddit thread, it doesn't really work: the game still uses the looping info of the original soundtrack, which obviously doesn't work with the evo soundtrack.
We need to locate and modify the file that contains the bgm looping info (all the looping info for the evo soundtrack is already available in a file called "music.json" in the Geofront release, so I guess it's just a matter of cutting and pasting). I know there's a file called "bgm_info.itp" in the "system" folder, but I have no idea how to open .itp files.
I hope some modders start working on that issue, I'm one of those who believe the Evolution soundtrack is much better than the original music.

[Exarch_Alpha]

What is the Evolution soundtrack?

[Shadic]

Originally posted by Exarch_Alpha:

What is the Evolution soundtrack?

The PS Vita remasters called Evolution had animated portraits, a new soundtrack (mostly bad at least in sky), voice acting (carried over in this), lighting improvements (carried over), gameplay updates.

[digitalhaack1981]

Bwil, that's true, hopefully I've spread the word enough that people who know what they're doing can start looking into it and fix it. I've found a file that lists the names of the songs, I assume for the game to know what to display if you turn that on in the options. I'll do some more digging when I have time and see if there's anything else buried we can mess with!

Exarch_Alpha, the Evolution soundtrack is from the PSP version of the game, it had a different soundtrack than the original, and when Geofront released their patch you were able to pick and choose different versions of each song if you had the evo soundtrack to put alongside it.