This amazing video ad for Sharp cellphone Touch Wood SH-08C features a wooden ball rolling down a homemade xylophone in the midst of Kyushu, Japan’s woodlands.

Kenjiro Matsuo at Invisible Designs Lab made the instrument.

“We did not add any artificial music at all,” said a rep of Drill Inc, the Japanese advertising agency that made the video (check below).

The music played on the giant xylophone is Bach’s Cantata 147, “Jesu, Joy of Man’s Desiring.”

Via Swiss-Miss