Abstract
♯&♭ are used traditionally as things necessary to music. They, however, are not preferable to be used in music, as they make music complicated and difficult to learn.
Then quite a new method in which ♯&♭ are not used is proposed in this book. The reason why ♯&♭ are not necessary at all to music is described on the basis of music theory and this method is explained including new musical grammar and new notation.
With this new notation musical score becomes simple, and music is improved as a thing easier to understand. http://km87290.web.fc2.com/htdocs/index.html(Home page of Sumio Natsuyama)