I'm having trouble interpreting this chord progression. For example, the three different iv chords shown: does the bass note not affect the right hand? I can see that they are only using "A-E-C", so basically what I'm asking is does it matter how and why, or does it only matter that for a iv chord that my bass note is "A", and I can use any combination of "E" and "C" to make as many versions of the iv chord as I can?
For example, it seems like the first iv chord is in its first inversion, but the usually with first inversion the bottom note goes on top. But instead putting it on top they just put it to just an "E", which happens to be in the middle? Basically why does the first iv chord make sense? Shouldn't the "E" be on top? Or is this just the 3rd inversion of the iv chord?
The content shown is not mine and it was provided for free from guitar center when I bought this keyboard machine. Here is the link to the site https://www.emediamusic.com/keyboard-piano-lessons/beginner-piano-method.html.