Okay, didn't know that. Still, remixing themes from older games sounds like a better solution than reusing the same (mediocre) theme in almost every town, even if it doesn't fit with the town's motive. Don't have much experience with DQ, but I bet there is at least one orient-influenced town/village in the older games with a fitting theme to boot.
It's also not a new remix, it's the symphonic version of the song from DQ3 which has been around for a long time, at least 10-15 years.
But yeah I do agree with your point, it would be nice if they mixed up the town themes a bit. That's kind of a running issue in the DQ series though.
The general rule for the game is "If a track stands out as particularly good, it is probably from a previous DQ".
Yeah I'm noticing that. Pretty bland soundtrack.