I promise you, this will be one of the coolest things you watch all day.

It's truly mesmerizing.

What a beautiful rendition. What a tremendous example of man's creativity and engineering.

The music - a song that honors Jesus Christ - juxtaposed with the beauty of creation.

It's magnificent.

And what's even crazier is that it's all a 12-year-old ad for a cell phone in Japan.

In this little-seen commercial for DoCoMo, a ball rolls down many wooden boards in a forest, making the melody "Jesu, Joy of Man's Desiring" composed by Johann Sebastian Bach.

This commercial's title is "Wooden xylophone in the forest" and it aired on TV at the same time as the March 11 earthquake and tsunami. It aired only once because of the disaster.

What an amazing and beautiful feat.

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