the primary composer on this game, Keiji Takeuchi, worked on audio for Compile as a part-timer during his college days, and he completely left the game industry upon graduation—he has occasionally shared arranges of his old tracks on NND, but he's spent most of the last 20+ years working in TV production
...until recently, when M2 tapped them to compose for their upcoming console game, Aleste Branch! as with every in-house M2 project, it's been in development for way longer than anticipated, but some of KG's music has appeared in trailers and so on:
In the interim, they also had KG handle the incidental music for their Aleste Collection: the menu tune is an arranged medley based on the games in the collection (one being a game he wrote for back in the day), and the other tune is original to the collection:
(this collection's coming up on three years old now... now, I don't know why it has yet to be released worldwide)