Woah...
First thought is this is WAY better than all the version I had heard so far.
Second thought is the kokyū has this ressonance/frequence that you can feel in the back of your head (or, sorry if I'm just weird).
Third thought is thank you for sharing this one. I am hypnotised with this duo's performance.
Glad you enjoyed it! Yeah, the kokyū is wild, man. It is such a rich sound that really pulls at you. It's one of my favorites.
I will share some more of these blends and introduce some more traditional instruments in the future.