I think it is natural to integrate JAPA into Ardour since perceived spectral power is KEY to mixing. It would make Ardour more robust since most users don't know about JAPA. To be honest, I didn't know what to type into google when I was first looking for the analyzer, and I just happened to stumble on JAPA I think. I also seem to remember that I had to compile it myself (not hard, just a hassle). Anyway, my point is that an analyzer should be considered basic functionality and should come packaged. I'm more than willing to help integrate it if you need help.