The class of the music may be called into question in school education whether there is the need. Not only it is distinguished from a vice-subject for main subjects, but also may hear what, actually, a student eats on the site in the future what it is useful for. However, by the class of the music of the school, I develop the sensitivity of children as well as simple knowledge and skill by expressing it, and it may be said that it is the subject that is very important in the part of the human being formation to do a heart wealthily. Above all, the elementary school is the time when they are very important as the making of base in learning music at school from now on. Not only, in this article, I analyze the need of the class of the music in the elementary school, but also consider whether it is necessary for the instruction of the class of important thing and the music as a music department teacher.