including an instrumental line in this entire twelve-line verse is a great choice musically, even though i don't know anything about music. this balances out the verse. freshens it up. makes people go 'ooh. let's
  see what's going on.' i'm not a musician but does it mean something that the instrumental line is the sixth line?
it seems to be on the 5th line. which is after 4 lines. in this case, the 4 lines feels like a complete unit. but the truth is, i really wanna just keep these going and stay in this section. but there's a chance that maybe i shouldn't stay any longer ...... so i guess i throw it to a musical riff because obviously i still have that melody in my head, and then the fact that we leave after 1 shows that even though we briefly considered leaving, what we really want to do is double down and stay