Hi Atlaisha!
I've found an interesting dictionary site with a lot of examples for you to see the between-among theme more clearly. Here's the link:
between - Definitions from Dictionary.com
I would like to add, that to read "between the lines" is a form of expression, no matter if there are two lines or more, meaning you get what the speaker/writer
really wants to say.
Songs are like poems, they have special licenses, permission, to change the order of words, the genre, the number, etc. to convey the meaning the writer wants to. They are unluckily not the BEST way to learn grammar!
But I can suggest Beatles' songs. They are the exception.
See you around!
Cecilia