Repetition

Repetition is the occurrence of an event which has occurred before. Repetition is important in music, where sounds or sequences are often repeated. One often stated idea is that repetition should be in balance with the initial statements and variations in a piece. It may be called restatement, such as the restatement of a theme. While it plays a role in all music, in fact most musical sounds are periodic, it is especially prominent in minimal music. The number of repetitions in a period of time is frequency.