Recently, I found a great website that will help create a playlist of your favorite artists or bands on Youtube. You don't need to create a Youtube account to use it. All you have to do is to search for your favorite artists or bands and it will compile them as a playlist you can play flawlessly.

Tubalr.com, a website created by Cody Stewart does all of that. Here's an screenshot:
Tubalr Screenshot

As you can see on the above photo, I just search for an artist like "Alex Goot" and from that Tubalr compiles all Youtube videos from that artist. After the compilation, Tubalr will create a playlist that will continuously play all of them. It's on Repeat so after playing the last video, it will go back again on the first one. Try it and have fun!