Definition & Meaning of "strike a chord with somebody "

What is the origin of the idiom "strike a chord with someone" and when to use it?

The origin of the idiom "strike a chord with someone" can be traced to music and the concept of playing musical chords. In music, when a chord is struck on an instrument like a piano or guitar, it produces a harmonious and resonant sound. This sound can evoke emotions and connect with the listener on an emotional level. It is commonly used in discussions about art, literature, music, films, or any form of creative expression that deeply resonates with an individual's feelings, beliefs, or personal experiences.