hebele I think musicians sell more stuff if they simply put "Easy" on the title.
Nope. He started the easy course with something like "it is time to drop the word beginner, because we are now beyond that". I think the easy course fits quite well to the difficulty of the 8 easy blues pieces in terms of difficulty. Easy means easy. Since I tried to play a Christian's Christmas song arrangement, (a medium difficulty, I guess) I know the easy stuff is easy. This medium/intermediate level song was so hard to learn for me, I only managed to learn the first half of it. Took me 20 days. And my playing was as error prone as the water is wet. It took me an entire day to get a decent recording, and even then I had to cut two attempts into a single video to get a half of the song done.
One thing to mention - Christian is from Germany. He doesn't know about Bavarian beginner gradesTM. He constantly jumps over all the levels to amateur. I reckon it was something like this:
Bloody beginner - beginner - advanced beginner - amateur - make a YouTube channel with piano tutorials