A recurring musical phrase, also known as a MOTTO, is a short phrase or melody that is repeated throughout a piece of music. It is often used to create a sense of unity and to emphasize certain ideas or themes. The term 'MOTTO' comes from the Italian WORD for 'WORD' or 'SAYING'. A recurring musical phrase can be used to create a sense of familiarity and to help the listener recognize the piece of music. It can also be used to create a sense of anticipation and to build tension.