YES. As I mentioned elsewhere, CIV VI had a staggering amount of music: not only did each civ have its own Ancient/Medieval/Industrial/Atomic theme, but also a number of ambient themes (as noted above, Sumeria was one of the sole exceptions in regards to ambient tracks). As a result of this, each civ tended to have 10-15 songs associated with it (with Australia having the most music, with, if memory serves, 26 or so tracks). So if you were playing on a big map with a lot of civs, chances were good that you'd hear a lot of music and that it wouldn't get too repetitious. But here, each civ only gets one theme each, and because each era only has two general peace themes and war themes, that only comes up to around 40 songs or so total. And the peace themes in particular in, say, the Exploration era I heard over and over again.
I must say, I really do miss the whole "each civ having a main theme that changes every two eras." It kind of captured the whole "rising to great things from humble roots."