Off Kilter

So the gist of the above is that the use of gold is nonsense, just as much "arabian" music packaged for Western audiences is likewise. Both work, in that you can gate around Baldur or kick back with some fine Zimmerman, but neither are representative currencies nor music of the source cultures.

Armor, too! Here the citations can be prior works that use the same "tip the barmaid a gold" or the scale (mail) trope that have been wrong, wrong, wrong for who knows how long. "Don't rock the boat" (nor overturn the tables before the temple) can be a thing, as changing the formula might change the profits, so there can be reasons to be less adventurous (laziness also comes to mind) with the currency system or modes employed. "Danse macabre" by Saint-Saëns got a not very positive "horrible screeching from solo violin" review, and the tuning there isn't very adventerous.

On the other hand as recently as 30 years ago listening to foreign music mostly involved going somewhere else, or maybe to try your luck upstairs in the "world" section at Tower Records. Radio, perhaps, or other such happenstance. Currency discussions? You'd likely have to be in, or very adjacent to the relevant folks doing the research, or maybe have access to a library or used book store, which for some reason tend to be adjacent to the academics. These days we're drowning in music, and you can likely find and work with specialists in 14th century Comtat Venaissin coin purse designs, should the need arise. Still, it probably would not be much research and a college library could get you (even if on loan) something on musical modes or historical metrics of Mammon, so while the internet can make things easier it was not essential for the design of a more accurate currency system (or lack thereof). Music composition might run into trouble if you lack particular instruments and skill with such, so the budget or resources for music was likely more of a problem before the internet. There are however Western instruments that can pitch bend, so violins and clarinets could be microtonal enough, and good drummers could scrounge together a reasonably accurate rhythmic section on not much of a budget.

There may also be a hint of anti-intellectualism in the air, and that is a mode of Western thought.