Good Observation, clearstar ! ... and good comment ...

I agree that the intro music (and gameplay music too) is considerably above average.  This kind of feature adds ambience and immersion to the game.  It also adds class!  Much like the artwork in this game, the quality that it adds is kind of subtle; but it really does make for an enhanced game-playing experience.  I have previously cited Paul Boyer and his six person Art Direction Team, for their contribution in creating, polishing, and extending a unique look to this latest generation of 4x game.  And their contribution keeps getting better ! ...

And, yes, I would like to learn the identity of the person who has composed the music too.  He, she, they, or it    deserves a shout-out too, for the nice work that has been done.