Can we get a summary translation? Sounds like he says overblows are easier due to the separation of the blow and draw chambers. Then he plays some lounge lizard music.
And this video is only related because I found the link from that video, but still interesting. He seems to be showing how to set up a reed for overblowing.
Looks like he is lip blocking the upper / lower chamber. Just like I can do with my octave harp. I wonder how normal bends are working on that if the draw/blow reeds are in separate chambers.. I guess there could be some resonance through the mouth that makes the other reed to vibrate too but probably it won't bend as far as normal blues harp does..