Not sure if I'm answering the question correctly. Just answering my favourite FF music here
. My appreciation for a lot of FF music has muffled with time and exposure, as with all music, so it is pretty hard for me to really pick any, I reckon... but...
I remember the feels the first time I heard
One-Winged Angel play when I first fought Safer Sephiroth. Has never been replicated really in any FF music since. It just set such a high bar for me, especially with future final boss music, which wasn't ever usurped.
Aerith's theme is brilliant on its own too, never mind its associations, but I'm not in the mood to call what I think is a tragic song as my favourite theme
.