: "For The Times They Are a-Changin". This is the " refrain " as explained earlier. Chorus "What is a chorus and how to use it in simple 2 part song form" In "simple 2 part song form " the verse is followed by the chorus . The melody and lyrics of the chorus are unique from the melody and lyrics of the verse . When this musical form is duplicated, each and every following verse has different lyrics even though the lyrics of the chorus continue to be similar. When we look at this with regard to the harmony (chords) nothing or very little is changed. As you can hear the words of these songs do change but the music itself  basically stays the same (or at least no major changes occur). "What is a contrasting 2 part song form" In a "contrasting two part song form ", the verse and chorus are normally lengthier and more complex (both lyrically and musically) than the verse and chorus of simple binary song form . Here, the verse performs especially as an introduction (instrumental section) to the main verse (with lyrics) and is called an introductory or intro verse. The chorus here, is the most important body of the song which is in strong contrast with the verse . Note the " intro verse " is musically the same as the main verse when Jimi starts to sing the words : "You know you're a cute little heartbreaker". The chorus comes