Experienced ethnomusicologists, such as myself, must report that Jonah Goldberg has linked to “The Ballad of Bilbo Baggins” at least three times in the past three years. To some, that might suggest the hammering of an old joke past its time. But to us ethnomusicologists, we say: Three times is not often enough! You can’t listen to this one enough! True, it’s not a bunch of Swedes on a spaceship, but, again, speaking enthnomusicologically, it’s a gold mine!