And the holiday music is nice, just the thing for putting on in the background and feeling all gung-ho at Christmas. Here's "Joy to the World"
Besides, without Mannheim Steamroller what music would overachieving techy house decorators use for sychronizing their lights? Light displays behind the cut, for brevity.
"Deck The Halls"
There's plenty more "house lights and music" displays at YouTube. Plenty more. Believe me.