Thanks! :) Yeah, I think Koshiro's approach to ActRaiser was super-influential on Takekawa when he wrote Soul Blazer's score. The two games even share a soundfont, it sounds like, even if Takekawa never used a lot of the instruments Koshiro did.
I mean, one can see why, at least, ActRaiser has the reputation it does. "Filmore" is up there with stuff like "Terra's Theme", "The Last Duel", and other capital-C 16-bit classics. But the days a soundtrack could get away with a handful of excellent pieces ended in the NES days, and while the surrounds of "Filmore" and "Birth of the People" are great, I think they're too cinematic and too underdeveloped.
Thank you for pointing out the typos - they've been fixed.