I take it you're not familiar with the Music Players in other versions of the Final Fantasy games. It's basically Sound Test, allowing you to listen to all of the music tracks IN the game, in a easy to use list. However, I do know that Woolsey Uncensored SHOULD still be compatible with the MSU-1 patch, so you COULD replace tracks with you're own music if you so desired.
Thanks, I understand now. I meant adding this information somewhere to your project page or readme, like a screenshot of what the music player window looks like, or just including what you just wrote somewhere in the description. That way us newbies know if they want to patch it or not.
As for the music player itself, I've tried and failed to get it working using both Lunar IPS and the Online Patcher, and both with an unheadered ROM. The result was the same both times - the intro logo music sounds like bombs going off or a Kaiju crashing through a city. I'm using the lr-snes9x emulator on Retropie 4.7. Maybe just an emulator incompatibility? I managed to get DancingMad's MSU-1 patch working (and also TWUE 2.10.2 along with it) and now I've got amazing modern music and your awesome work combined. Just for whatever reason the music player in your download doesn't want to play nice.