in music, a chord is a group of three or more notes played simultaneously. chords are often used in music to provide harmony and add interest to a melody. they can be played on a variety of instruments, including the guitar, piano, and organ. chords are typically built by selecting notes from a scale and combining them in a way that sounds pleasant to the ear. the notes in a chord are typically played in a specific order, called the chord progression, which helps to create a sense of movement and tension in the music.
