Wow! I think this artical is interesting. I think it's interesting because a concert going for six-hundred thirty-nine years or one-thousand years is really long and really interesting! I think a hour long concert is anough but for that long... wow! Well, it's a record so I believe that it's true. It;s amazing that they can make technolagy work like that. I guess scientists get smarter and smarter each and every day. That's why I think this artical is interesting.