Đàn bầu is a traditional Vietnamese musical instrument known for its unique sound and simple design. It consists of a long, narrow wooden body with a single string stretched over it. The player uses a bamboo stick to pluck the string while manipulating a pitch-bending lever, allowing for expressive melodies. This instrument is often used in Vietnamese folk music and can evoke a range of emotions. The đàn bầu is not only a symbol of Vietnamese culture but also plays a role in various performances, showcasing the rich musical heritage of the country.