This is an Emishi flute from Negishi Shinobue Kobo. It has some scratches. These scratches are not likely to cause cracking. 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 believed to have been used by the Emishi people in rituals, such as for 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 from illness. (There are many tales and legends about the Emishi people in the Tohoku region.) It is also said to be the flute used by Minamoto no Yoshitsune (Ushiwakamaru) in his childhood. It is believed 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, the tube itself will resonate slowly without blowing at 15°C, and it will be tuned to 440-448Hz G pipe (standard Do-Re-Mi scale, six holes, three-hole 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. They said it was very enjoyable and brought tears to their eyes when they remembered 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 encourage those who are suffering. Many festival flutes in the Tohoku region are based on the Emishi flute, such as the accompaniment music and Kagura (sacred music and dance) (Akita Kanto Festival, Morioka Sansa Odori, accompaniment music and Kagura in the inland areas of Akita, Iwate, and Yamagata prefectures, and Kagura on the coast of Iwate Prefecture, etc.) Thickness: Approximately 23.8 mm at the mouthpiece Length: Approximately 42.2 cm Mouthpiece size: Approximately 13 mm Bamboo hardness: Normal Thickness: Slightly thinner than normal Range: From the fundamental tone to the high tone 6 (a fingering chart is available) Because natural materials are used and it is handmade, there may be variations in color, shape, bending, and scratches. Please refrain from price reductions. Thank you very much.