Suomeksi | In English


A chord is defined as a combination of more than two notes sounding at the same time. In practice, for example, a tenth interval can be perceived as a chord (M10 = major chord, m10 = minor chord). A triad is a chord built of two third intervals; a four-note chord is built of three thirds, a pentachord of four thirds, and so on. Our conception of a chord has been strongly affected by the idea of a "pile of thirds": chords are usually named after the root note on which the pile of thirds is built. Triads and four-note chords are a central concept in tonal music. Chords used in post-tonal (atonal) music are not interpreted in terms of piles of thirds.

The term harmony is used as a synonym for chord, but it may also denote the art or science concerned with the structure and combinations of chords.