The transitional part of a 32-bar song sometimes called the middle 8 also has the name of this structure
In music theory, middle eight refers to the B section of a 32-Bar Song Form
... [DOC] [TLE] AABA, REFRAIN, CHORUS, BRIDGE, PRECHORUS SONG ... [PAR] Accordingly, the AAA Form is also known as the chorus Form: Blues form is a 
... bridge, common among musicians, refers to a transitional part between the 
... to the prechorus) and primary bridge (to refer to the middle eight) have been 
...