The book was written by Sadao Watanabe who’s the Jazz saxophone player.

The reason why I learned about it was because I was jealous of the man who was bass guitar player and played with me as the band player named “SYNC.”

He knew a lot of music methods and I didn’t know that.

Back then, I thought I need more time to make music and need more something.

So I thought the something was music theory and I started to learned.

The first time I read it, I didn’t understand it at all!

But I read it again and again, I started to understand it.

I’m sorry that I didn’t use it for making music and I want to use it from now.

Tnx music