Brass instrument repair involves fixing and maintaining musical instruments made of brass, such as trumpets, trombones, and tubas. Common issues include dents, leaks, and stuck valves. Technicians use specialized tools to straighten tubing, replace worn parts, and ensure proper alignment for optimal sound quality. Regular maintenance is essential for brass instruments to perform well. This includes cleaning, oiling valves, and checking for any damage. Proper care can extend the life of the instrument and enhance its sound. Musicians often seek professional repair services to keep their instruments in top condition for performances and practice.