Piano repair involves fixing and maintaining the various components of a piano to ensure it functions properly and sounds its best. Common issues include broken strings, worn hammers, and misaligned keys. Technicians often perform tuning, regulation, and voicing to enhance the instrument's performance. Regular maintenance is essential for preserving a piano's longevity and sound quality. This can include cleaning, adjusting the action, and replacing damaged parts. Professional piano tuners and technicians are trained to handle these tasks, ensuring that the instrument remains in optimal condition for both amateur and professional musicians.