Đàn đáy is a traditional Vietnamese string instrument, often used in folk music. It has a long neck and a rounded body, typically made from wood. The instrument features three strings, which are played with a plectrum, producing a soft and melodic sound. This instrument is commonly associated with the Tày and Thái ethnic groups in Vietnam. The đàn đáy is often used in cultural performances and celebrations, showcasing the rich musical heritage of the region. Its unique sound contributes to the vibrant tapestry of Vietnamese music, making it an important part of the country's cultural identity.