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Hello brother, how are you, first of all, a big hug from me! Hey, at first sight it seems very difficult, as well as I could see a difficult piano, but I've seen that you play it quite well!

The detail is that you have to know the instrument, this one has at least 7 positions that by the way are inaccurate, everything will depend on the tuning you have.

Nothing old man, I hope you are encouraged to play it, the truth is that this instrument is pretty good. God bless you!

The movement of the hand to and fro on the right side. Won't the arm be paining?

Haha no little brother, you know it hurts a lot? The lips, because I don't think you know. But the instrument is not played by blowing, but by vibrating the lips, You can see it in this video.

Ohh now I get you and understand what you re trying to say