Add dynamic battle music which changes based on the plane you're fighting/about to fight.

[paper schooner]

No new soundtracks are needed; instead, when two combatants get near each other, the "deadlier" plane's theme begins to play.

For example, if a Compass encounters an Ifrit, the Ifrit's theme will begin to play for both parties. If a Compass encounters a Cricket, the Compass's theme will begin to play for both parties.

Likely priority (subject to change): Ifrit > Revoker > Tarantula > Medusa > Compass > Darkreach > Chicane > Cricket

If a plane is going supersonic when it gets within encounter range, its theme will only start playing immediately after it passes by or lands a first hit, and it will temporarily play with increased volume or a distortion effect to increase the "dramatic entrance" that the plane made.

note that the reason why the tarantula is so high up is because it has a really imposing presence and the theme SLAPS

the opal, depending on performance, will probably go between either ifrit and revoker or revoker and tarantula

[stray hedge]

to add on to this.
if a plane has a low rcs for example the darkreach the theme should only play when you get hit or get a visual on it