Q: How do you change the icons at the bottom to different ones?

You can't. Apple has decided to put the new services you don't want in your face, and remove your ability to customize the app to your tastes and way of doing things.

I was looking for how to change the buttons on the bottom of the app like I used to be able to do. You know, let the user customize things the way they want instead of forcing crappy services Apple is trying to push down my throat and put in my face.

It is clear that the Apple I loved under Steve Jobs was murdered by Tim Cook. This app has gone from the coolest music app there is to an abomination. It's become increasingly clear over the past few years that Apple no longer cares what I want. They will enforce their will on their users in a way that not even Microsoft dared to.

Congratulations Tim Cook. You've done what Bill Gates never could. For the first time since my old Apple II+, I just bought a Windows PC and installed Windows 10. It seems that Microsoft listened to it's customers about how bad Windows 8 was and gave them something more like what they want. You know, like Apple used to do. But Tim Cook knows better than his customers, or so he thinks.

R.I.P. Apple. You died too young.

Actually the views that used to be available in the lower menu are still there, the mechanism for changing the view is simply located in a different place (from the My Music screen). As functionality is introduced to an app, the user interface changes. Nothing nefarious about that.

The rest of your post is so steeped in ignorance it isn't worth comment.

you may want to comment with directions to help people vs just commenting because you disagree with someone's point of view.

I may, but obviously in this case I didn't.