A one-string instrument is a musical device that produces sound using only a single string. These instruments can be found in various cultures around the world and are often played by plucking or bowing the string. Examples include the diddley bow from the United States and the Ektara from India. One-string instruments are typically simple in design, making them accessible for beginners. They can be made from various materials, such as wood or metal, and are often used in folk music traditions. Their unique sound and straightforward construction allow for creative expression and experimentation in music.