Pardon? FF7's soundtrack would have a word with you. The whole damn thing is an earworm. FF9's is a close second. And may I introduce you to Dancing Mad?FF barely has any memorable music, but at least it has some stuff like Battle on the Big Bridge, while I can't remember anything as far as DQ goes.
I get you with DQ's though, it's mostly good background music but not many tracks are memorable. Still, they set the mood well and there are songs that stand out. Not just the omnipresent battle themes either.