Wataru Kousaka is a Japanese multi-instrumentist who notably plays the sanshin (Okinawa samishen), but also sarod, flutes, jaws harp, and nose flute. He already has produced several CDs, and the following tune comes from his last record called てぃんさぐぬ鼻 (which is Google-translated by "Tin Unexpected Nose Sag"...).
In this video, Wataru Kousaka uses a loop machine with a sarod bassline, then two nose flute harmonic melodies, and finally plays the sarod with a bow. The result is a beautiful lament.
You may also like to listen some music by Wataru Kousaka. On this page, you can listen to 9 sound samples, including some tunes with nose flute.
But I particularly recommend to you "Futahana" (a beautiful piece played on a sanshin), "The Wind" (with several coats of jaws harp) or the beautiful "Country roads".
Visit Wataru Kousaka's website
Visit Wataru Kousaka's Youtube channel