Music is the one thing consistently amazing about this game.

HOWEVER...

Soken, as much of an outstanding composer that he is, isn't using the best of his creativity when it comes to night themes. Ever since Heavensward his night themes are all literally piano solos of their respective overworld themes. It's super predictable, repetitive and cliche.
Other games know how to keep the nocturnal atmosphere of their regions without being one-trick ponies. And funny enough even in this game Soken himself does it vastly better, when it comes to city-state night music.