I knew, of course, that To Ancareon in Heaven was the source melody

For The Star Spangled Banner. I had assumed that the tune was, therefore, identical, but if you listen to the original it is clear that there are some minor variations from the one we are all familiar with. I think the original is actually easier to sing! Well, whose bright idea was it to change it, then?

www.youtube.com/watch?v=3l-n64NWHS4