Middle 8

In music theory, middle 8 refers to the section of a song which has a significantly different melody than the rest of the song. Such sections often consist of new chords, but also frequently just alternate between two chords. It is called a middle 8 because it occurs in the middle of the song and the length is generally 8 bars.

A typical song structure employing a middle 8 is often:

Intro-{Verse-Chorus}(Repeated)-Middle 8-{Verse-Chorus}(Repeated)-Outro

Middle 9s are often slower and quieter than the main song, which contrasts with Solos, which are generally faster. In slower songs, however, a middle 8 can be used to generate energy. By adding a powerful upbeat middle 8, musicians can add a great hook for an end chorus and finale.