So moving on … I thought “I wonder about other countries. Do they have any a capella national anthems on YouTube?” And the answer:

This one (they request no embedding) is from Norway. And is beautiful.

China (not great sound):

Cananda:

And this next one gets extra points because of the Giants shirt the girl is wearing! Philippines:

Okay … time to get myself moving and ready to teach. If anyone knows of other a capella national anthem just say the word.