A friend's wrote a book on prehistoric flutes. Her Ph.D. dissertation was on the subject, [1]. Unfortunately, I believe that it is out of print. [1] Lana Neal,

A friend's wrote a book on prehistoric flutes. Her Ph.D. dissertation was on the subject, [1]. Unfortunately, I believe that it is out of print. [1] Lana Neal, The Earliest Instrument: Ritual Power and Fertility Magic of the Flute in Upper Paleolithic Culture, https://www.amazon.com/Earliest-Instrument-Fertility-Paleolithic-Culture/dp/1576472213/ref=sr_1_2?crid=3F4GUEY0PAPZF&keywords=lana+neal+flute&qid=1685055812&sprefix=lana+neal+flute%2Caps%2C150&sr=8-2 https://www.amazon.com/Earliest-Instrument-Fertility-Paleoli...