A musical phrase is a short segment of music that expresses a complete thought, similar to a sentence in language. It typically consists of a series of notes that create a recognizable melody or idea. Phrases can vary in length and are often marked by a natural pause or breath, allowing musicians to convey emotion and structure within a piece. In composition, musical phrases are essential for building larger sections of music, such as verses, choruses, or bridges. They help organize the flow of a song and can be repeated, varied, or developed to create interest. Understanding phrases is crucial for both performers and composers in creating cohesive musical works.