"Quintet Quintet" is a great title, haha. I agree with your review of the soundtrack, as well.

Actraiser's "Birth of the People" and Soul Blazer's "Lively Town" always sounded similar (more than other town themes), so I think the directors might have influenced the musical style considerably since they have different composers.

I agree with most of your review and conclusion, too. The soundtrack is overrated, despite still being good.

A couple of typos worth pointing out:
-"once can see" should be "one can see".
-"more then that" should be ""more than that".