Field battle music..

Idk if anyone talked about this but why SE won't make a update where in expansion areas play their field battle music? Aren't ppl tired of hearing the normal solo music everytime u face a mob? I kept thinking about abyssea where it plays their normal battle music even if u solo or not so why not the former expansions?

Anyone want to talk about it just feel free to comment, want to hear your thoughts about it.

It probably doesn't change because the theme of the game is to be with others.

If it always played the party music, when would the solo battle BGM play?

A toggle option to choose party\solo themes would be cool, speaking as a fan of final fantasy music. Would love to do books in sky while listening to the zilart score w\o the requirment of having another person in the pty's roster.