I think the music from DOS2 was exceptional and I can only hope the soundtrack for BG3 is it's equal. Or is this post not so much about the quality of the music itself, but yet another thread of the overriding complaint that BG3 isn't enough like BG1 and 2?
DOS2 music is great and i enjoy it a lot. But DOS is DOS and BG is BG.
It seems it is the same person who made the music for DOS who now makes the music for BG3. Which is not a good thing IMO, despite his talent, because as we can hear, he tends to make sound track that sounds similar with the same kind of tones, sounds, instruments, accords and samples.
The music from BG2 had mostly 2 different kind of tones : "epic" during combat and "mysterious" during adventure. Very rarely had a "happy" or "carefree" tone, except in inns and taverns. They generally use classical instruments and choirs.
While in DOS2 i feel the music is trying to be more "quirky" and "magical" and fits well the theme of the game. They generally use modern or exotic instruments, generally no choirs.
As a result not only the music instantly makes you think about Divinity instead of Baldur's Gate, but it also prevent any feeling of continuity. This music is not the sequel to BG2 music. It's something else.
On a final note, the music from the introduction cinematic feels closer to the original BG music, and makes me feel hopeful for the final product. But i would prefer they directly work with the composer from the original games, rather than try to make it their own thing.