What I hear, and what speaks volumes to me every time is at the end. After the gently contemplative Silent Night, Jingle Bells come in and begin working up to a frantic pace; like I tend to do. But then, the strong brass cuts in with the steady pace of O Come All Ye Faithful. A reminder that the real Christmas is not about the busyness we endure, but about the Reason we celebrate. And although Jingle Bells continues, it never overwhelms the jubilant mood again.
Now I hope you will hear this, too, whenever this music is played.