The Science News article, Stone Age flutes found in Germany, reports that people living in Europe more than 35,000 years ago made this flute (shown from three different angles) out of a vulture bone. The magnified portion of the flute at the right provides a closer look at two of the flute’s finger holes.
As far as I can make out, it appears to be a simple end blown flute like the shakuhachi. The blowing technique is similar to blowing across the top of a bottle to produce a pleasant resonant tone. By placing holes in it, you can play a melody, or something melody-like in the case of Buddhist Hon Kyoku.
It feels intriguing being connected to the musical tradition of an end blow flute that predates civilization by tens of thousands of years. Keeping that image in mind while I play it helps me put Tao into the blowing Zen. As chapter 14 hints, The ability to know the beginning of antiquity is called the thread running through the way.