This is the Emishi flute from Negishi Shinobue Kobo. This is the original pitch of the Emishi flute. (440-448Hz at 15°C) This flute has been passed down in the Tohoku region since ancient times. It is said to have been used by the Emishi people, and it is believed to have been used in rituals such as burying and memorializing the dead. It is also thought to have been used to encourage those suffering from the loss of a loved one or those suffering from illness. (There are many tales and legends about the Emishi people in the Tohoku region.) It is also the flute that Minamoto no Yoshitsune (Ushiwakamaru) is said to have used in his childhood. It is said to have been brought from South America, but the details are unknown. The bamboo nodes are formed according to the purpose. (Natural law) In the case of the Emishi flute, if certain conditions are met, regardless of the thickness, hardness, or length, the mouthpiece is opened just below the node, and finger holes are opened between the nodes, and when the tube itself is slowly sounded without blowing at 15°C, it is tuned to 440-448Hz G pipe (standard do-re-mi scale, six holes, three-key tuning). (The hertz is slightly higher than in current music.) From the Meiji era to the beginning of the Showa era, small elementary schools in mountain villages did not have organs. The Emishi flute was played to teach children nursery rhymes and folk songs passed down in the area, and the children were delighted. I have heard stories from people who actually sang nursery rhymes with the Emishi flute. It's so much fun, and it brings tears to my eyes when I think about it. They said the Emishi flute was easy to sing with. I have been researching physics using the laws of nature for many years and can identify bamboo that meets the conditions. After the Great East Japan Earthquake of 3.11, I revived the flute with the aim of memorializing the deceased and to help those suffering to feel even a little better. Many of the festival flutes in the Tohoku region are based on the Emishi flute, such as the hayashi and kagura. (Akita Kanto Festival, Morioka Sansa Odori, hayashi and kagura in the inland areas of Akita, Iwate, and Yamagata prefectures, and kagura on the coast of Iwate Prefecture, etc.) Thickness: Approximately 24.2 mm at the mouthpiece Length: Approximately 42.2 cm Mouthpiece size: Approximately 14 mm Bamboo hardness: Slightly softer than normal Thickness: Normal Range: From the fundamental tone to the high tone 6 (there is a fingering chart) Because natural materials are used and it is handmade, there are variations in color, shape, bending, and scratches. Please note that price reductions are not possible. Thank you very much.