Final Fantasy VI: Revised Old Style Edition

Hello.
I have recently wanted to play ff6 for the first time.
I have decided to use either ROSE or TWUE hacks.
when looking at TWUE I noticed that it offers two options for opera songs, one being the SNES version and the other being the GBA version.
which one is being used in the ROSE hack?
also some commenter said that one of the versions syncs better to the music.
now I do not want to spoil myself by checking out both versions, but if someone knows which version the commenter was talking about, please post a reply below.