The transitional part of a 32-bar song sometimes called the middle 8 also has the name of this structure
[DOC] [TLE] Formal Structure in Beatles Songs, Part 1: Please Please Me ... [PAR] Dec 5, 2012 ... (How can I know if a song has a chorus or not if I'm not even sure what ... Middle 
8 - a section (almost always) in the middle of a song, and ... As the name implies, 
this section usually features a thicker texture ... Often also called a riff, or a motive.