Piano tuning is the process of adjusting the tension of the strings in a piano to ensure that it produces the correct pitches. Each string is tuned to a specific frequency, allowing the instrument to sound harmonious when played. Tuning is typically done using a tuning fork or an electronic tuner to achieve precise notes. The most common method of tuning involves adjusting the tension of the strings using a tuning hammer. Piano tuners often work by ear, listening for beats or discrepancies in pitch. Regular tuning is essential for maintaining the quality of sound and overall performance of the piano.