I am having trouble understanding a pop song verse progression that I came across.
Please see the following screenshot of the sheet music:
Here are the two main things I notice:
1) The first "phrase" (Am F F/E Am7 Cmaj7 Em) is harmonically more dense than the latter (Am F C Em); and
2) These are two different chord progressions played back to back in the same verse--yet they are not different sections.
I love the way it sounds and I am wondering if this has a name or if there is any theory that indicates how to construct such a chord progression. Do the nuances of the "first" progression have any harmonic function in terms of leading us to the "second"?
Any insight on this progression is appreciated!