What is a phrase in music?

One common phrase used in music is the "hook." The hook is a memorable and often catchy part of a song that is repeated several times throughout the piece. It is typically the most memorable and recognizable part of the song and is often what draws listeners in. The hook can be a vocal melody, instrumental riff, or combination of both. Hooks are important in creating a sense of familiarity and cohesion in a song, and can help make a song more memorable and enjoyable for listeners.