User blog comment:MordredH/Merlin Series 5 BBC ONE Trailer/@comment-5102537-20120728174301/@comment-5253758-20120729122850

If you payed attention to the lyrics you would understand that it perfectly fits the show especially series 5. Also the song isn't new at all so young viewers won't even know it. And who said that classical music is the only kind of music that fits medieval era TV Series? I think that it says "The legend begins" because it tries to show that the series is becoming more and more epic.