Unity is achieved through repetition, while contrast adds variety and interest. An appropriate use of repetition and contrast is needed to create a balance. Pattern is created through repetition of pitch, duration, texture and timbre. A pattern may also be described as a phrase in music. A phrase is a natural division in a melody line, similar to a sentence or part of a sentence.
Phrases combine to create structure or form in music.
Evaluation Perception in music refers to the ability to make organizational sense of sound creations. The teacher can assess the student's perceptual abilities by asking the following questions. Represent sounds and sound patterns through movement. Movement is a natural and often spontaneous response to sounds and sound patterns. Movement activities will help develop the students' perception and understanding of the elements of music.