A song is a musical composition with lyrics, often performed at distinct and fixed pitches (melodies) using patterns of sound and silence. Many songs, such as popular songs and folk songs, are in simple strophic form, while others such as art songs have more formal accompaniment.
The verse, sometimes also called the pre-chorus, is a short optional section that usually begins on a different chord from what came before it, and introduces the theme of the song in a more familiar way than the chorus. It is a chance for the songwriter to make their audience feel something, and is often used to create anticipation that leads into the chorus.
The chorus is the big payoff of a song, and is typically the most memorable part of it. It is often where the song’s story — whether it be a lyrical narrative, or simply a repeated sentiment like the Wheels on the Bus – comes to life. The chorus is the part of the song that people will remember, and it’s important to have a strong, memorable melody and to make sure that the words are clear and meaningful.