I won't go as far as Ahaus but I'll agree that a higher intelligence allows one to better appreciate music with multiple harmonious melodies. And then personal talent or skill in music (which is correlated but doesn't always align with intelligence) allows one to better appreciate complex arrangements, even from a single instrument. In the West, Classical music exemplifies this the best, but it also applies to rock, jazz, and electronic pop music, wherever it's not just chords backing a singer.

Everyone can certainly still enjoy it, the way we might enjoy a movie while not understanding its themes.