Repetition is important in
music, where sounds or sequences are often . 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, with
noise and musical tones lying along a spectrum from irregular to
periodic sounds,(Moravcsik, 114)(Rajagopal, ) it is especially prominent in specific styles. A literal repetition of a musical passage is often indicated by the use of a
repeat sign, or the instructions
da capo or
dal segno.