In terms of examples within the Final Fantasy franchise, I think XIII-2's implementation was a very nice hybrid. The fact that the normal and 'Aggressive Mix' tracks were both their own thing, yet were able to seamlessly transition between each other, was a really cool concept that played with 'layering' while respecting the very deliberate intention of the composer.
Definitely like to see stuff like that iterated upon. Lightning Returns and FFXV (demo) kind of use an 'aggressive mix' as a ramp-up to combat music, but it's not a seamless transition from a similar track, if that makes sense.
Oh I'm very well aware of the music in the entire Drakengard series.
If you want more examples (from Japan), Sonic Heroes does a bunch of music switching, as does Sonic Generations.
Definitely like to see stuff like that iterated upon. Lightning Returns and FFXV (demo) kind of use an 'aggressive mix' as a ramp-up to combat music, but it's not a seamless transition from a similar track, if that makes sense.
pls go n play nier
Oh I'm very well aware of the music in the entire Drakengard series.
If you want more examples (from Japan), Sonic Heroes does a bunch of music switching, as does Sonic Generations.