Format of music
The form of a piece of music or a form of expression is the form of music. All musical works have both opposite sides called 'change' and 'unification'. The former is the so-called centrifugal force. The latter is likened to centripetal force. If a work had a rich change and a solid unity, it would have been successful. Various uses of various elements of music, such as melody, harmony, rhythm, and tone, bring about changes in the work. Unity, on the other hand, is ensured by making the whole as little material as possible. However, if the rest of the work seeking change is simply a list of various materials, the result will be a distracting and distracting impression, and a material that is too limited to be monotonous and prone to torture and boring impression. Thus, it can be said how various changes are made to less desirable materials.