This is a music pack for the Ambience mod for Minecraft. It contains 19 songs from Final Fantasy X (The originals, not the remastered)
This pack requires the Ambience Music Mod https://mods.curse.com/mc-mods/minecraft/238120-ambience-music-mod#t1:description
Installation tutorial can be found on the mod page.
I HAVE ONLY TESTED THIS ON 1.10.2! Compatibility with other version is not guaranteed