Considering how much DQ music repeats itself in recent games (X, XI, Builders, Heroes, etc), I think "every theme in DQ goes with everything" is already becoming a joke in itself among the fans (along with fans wanting Sugiyama to pass on the torch already and how lazy Square Enix is in putting new DQ music in the latest games).
My DQXI and upcoming DQX reviews are more comedic riffs on the actual storylines with my own riffing and commentary. GC Positive and Mr Gentleman do a good job of the more "science" breakdowns
DQ YouTube is incredibly small, but there's a huge demand for more DQ