My wife turned on EQ music while we were playing the other night, just for the hell of it. Wyvernfang is gay as hell, ngl. I cannot imagine doing Tidefang with that going on.
BTW, it would seem that if you can discern which file in the EQ directory is playing in the House, rename it, paste in the mp3 of whatever you want playing in the House, rename that file to match, and presto! I am always at work when I think of things like this to try, but when I get home I just log in and play and never try them out.