A jazz chord is a type of chord commonly used in jazz music that often includes additional notes beyond the basic triad. These chords can incorporate extensions, such as the seventh, ninth, eleventh, and thirteenth notes, which add richness and complexity to the harmony. Jazz chords are essential for creating the unique sound and feel of jazz. Musicians often use jazz chords in improvisation and composition to evoke different emotions and textures. They can be played on various instruments, including the piano, guitar, and saxophone, and are a fundamental aspect of jazz harmony, influencing many other genres of music.