A sistrum is a musical instrument that originated in ancient Egypt. It consists of a U-shaped metal frame with loose metal rods or jingles that produce sound when shaken. The sistrum was often used in religious ceremonies, particularly in worship of the goddess Hathor, who was associated with music and fertility. This instrument has a rich history and was also used in other cultures, including Greece and Rome. The sistrum's distinctive sound made it popular in various rituals and celebrations, symbolizing joy and divine presence. Today, it is still used in some traditional music and cultural performances.