Susumu Hirasawa The 9th Mandala

There is a Mandala that will open after being knocked 90,000 times.
When the 9th Mandala opens, the sound of the 90,000 musical notes will fall.

The Concert Celebrating 90,000 Twitter Followers: The 9th Mandala

When 90,000 times knocks achieved, here you can download the tune consisting of 90,000 notes for free.