Verse-chorus form

Verse–chorus form is a musical form common in popular music, used in blues and rock and roll since the 1950s, and predominant in rock music since the 1960s. In contrast to thirty-two-bar form, which is focused on the verse (contrasted and prepared by the B section), in verse–chorus form the chorus is highlighted (prepared and contrasted with the verse). "Many popular songs, particularly from early in the 20th century, are in a verse and a chorus (refrain) form. Most popular songs from the middle of the [20th] century consist only of a chorus."

"Musically, most Civil War songs were cast in the verse–chorus patterns that had been popularized by Foster and widely imitated by his peers and successors, with their choruses set in four-part harmony." http://www.oxfordmusiconline.com/subscriber/article/grove/music/A2259148

Thus, while in both forms A is the verse and B is the chorus, in AABA the verse takes up most of the time and the chorus exists to contrast and lead back into the return of the verse, in verse–chorus form the chorus often takes much more time proportionally and the verse exists to lead into it. For example: ABABB(B) [approximates: "Be My Baby"], rather than thirty-two-bar form's AABA.

The chorus often sharply contrasts the verse melodically, rhythmically, and harmonically, and assumes a higher level of dynamics and activity, often with added instrumentation. This is referred to as a "breakout chorus." See: arrangement.

Songs that use different music for the verse and chorus are in contrasting verse–chorus form. Examples include:

Songs that use the same harmony (chords) for the verse and chorus, such as the twelve bar blues, though the melody is different and the lyrics feature different verses and a repeated chorus, are in simple verse–chorus form. Examples include:

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