Abstract
This proposal aims at making it possible for anyone to enjoy the act which builds original music freely. And it explores usefulness of using the feature of plaything as interface of the act. The plaything made as a proposal is as follows. Building various patterns that is made by combining the design of each side of four cubes is changed into music. One cubical field takes charge of one sound and endless music is constituted when the sound of four fields which constitute a pattern is connected in order clockwise. It is possible to urge to use creativity to building music by the familiar creation act.
