Musical instruments are tools or devices that are used to create music. They can be classified into different categories based on their method of sound production, such as percussion, string, wind, and electronic instruments. Musical instruments have been used for thousands of years in various cultures around the world to create harmony, rhythm, and melodies. They can range from simple instruments like drums and flutes to complex ones like pianos and synthesizers. The study of musical instruments involves exploring their history, design, construction, and playing techniques. Researchers in this area may investigate the acoustics of different instruments, their cultural significance, and their impact on music composition and performance.