Definition & Meaning of "tuning peg"in English

What is a "tuning peg"?

A tuning peg is a small, cylindrical device used on stringed instruments to adjust the tension of the strings. It is typically located at the end of the instrument's neck or headstock. By turning the tuning peg, the player can tighten or loosen the string, which changes its pitch. This adjustment is crucial for tuning the instrument accurately and ensuring it plays in the correct key. Tuning pegs are essential for maintaining the instrument's sound quality and performance.