I agree with Mystina, the unique sounds are WAY too quiet and get dwarfed out by other abilities or the BGM.

I have to admit, the old sounds kind of grated my ears, however, when everytime I cast a song it's: "DO RE ME FAAAAAAAAAAAAAAAAAAA" for every song instead of "BA DUM DUM DOOOO DU~M!" for tp song or "DODODOdodododoDODODODIDIDIDI" for ballad song, I have to do a lot of double-taking when I want my eyes to be somewhere else, like on the monster I'm trying to kill, instead of party members of my active effect bar because if I cast the wrong song, then I will have to run back out.