Guitar tuning is the process of adjusting the pitch of the strings on a guitar to ensure they produce the correct notes. Standard tuning for a six-string guitar is E-A-D-G-B-e, from the lowest to the highest string. Proper tuning is essential for achieving the desired sound and harmony when playing music. Musicians often use various tools for tuning, such as electronic tuners, tuning apps, or pitch pipes. Additionally, some players may tune their guitars by ear, matching the pitch of one string to another. Regular tuning helps maintain the instrument's sound quality and playability.