6th order won't get you there more then likely.
Unless you go through several several several builds to find the right mix of port area, tuning, volume...port placements, sub placements....list goes not lol
Also, what do you mean by "on music"?
I would think that means no less then a 30 second average of the score. If you are referring to a peak hold score, then that has nothing to do with if you play music or burp the setup.