The Hichiriki is a traditional Japanese double-reed musical instrument, commonly used in Gagaku, the ancient court music of Japan. It is made from a single piece of bamboo and features a distinctive, rich sound that is essential to the ensemble. The instrument has a cylindrical body with finger holes, allowing musicians to produce a range of notes. Typically played in orchestras alongside other instruments like the Shō and Biwa, the Hichiriki plays a crucial role in creating the unique textures of Gagaku music. Its sound is often described as haunting and ethereal, contributing to the spiritual atmosphere of traditional Japanese performances.