Repetition in music refers to the use of the same musical phrases, motifs, or sections multiple times within a piece. This technique helps to create familiarity and can enhance the emotional impact of a song. Composers often use repetition to establish themes, making it easier for listeners to remember and engage with the music. In various genres, such as pop, classical, and jazz, repetition serves different purposes. In pop music, catchy choruses often repeat to create memorable hooks, while in classical music, themes may be revisited in different forms. Overall, repetition is a fundamental element that contributes to the structure and appeal of music.