a capella national anthems

I like “The Star-Spangled Banner” a lot. I am definitely not one of those people who wants to see it replaced by something else.* However, when the song is performed, whether at sporting events, graduation ceremonies, or anywhere else, it is most commonly performed in a manner which invites complete and utter musical disaster. More often than not a lone singer, completely unaccompanied, stands at the 50-yard line or homeplate or wherever and stumbles his or her way through a mess of a rendition.