When I posted the previous remark I was at work. There, I do not have sound on my computer. I went to YT to review viewer remarks because....well.....I just like to. Sometimes they can be amusing. Anyway, I noticed some people posted they did not like the music accompanying the video, and since I could not here what the 'tour guides' were saying, I will listen to the vid today as I am at home where my computer has sound.
Also, this post serves to bump this great video.
Addendum: I have to agree, I also do not think the music is fitting for the presentation. A nice, gentle symphony such as what was played initially, would have been more appropriate IMO. Nonetheless, a great presentation!