Grunt, Gravity Blast & My Bad Friend

This video work imitates "how to video" and is made.This work is constituted by some the following explanation and practice of the special technique.

The technique called "Grunt" is bad voice peculiar to death metal uttered intentionally. The technique called a "Gravity blast" is a technique of the drum which enables high-speed continuous hits using the principle of the lever peculiar to death metal.

My "grunt", my "gravity blast", and my bad friend and his room appear in this video.