What is a chord?

Chords come from Greek χ ο ρ? A concept in music theory refers to a group of sounds with a certain interval relationship. Three or more sounds are vertically combined according to the overlapping relationship of three degrees or non-three degrees to form a chord.

Trichord: There are generally three chords, seven chords, nine chords, eleven chords and thirteen chords. Non-third-degree chords usually include hanging chords, strong chords and so on. However, there is no such thing as 32 chords, 40 chords or even 64 chords! Strictly speaking, chord bell is a commercial concept, which is not in line with music theory, but the timbre is fuller and rounder, which can give people beautiful enjoyment in hearing. But in the industrial design of audio equipment, chords are also called polyphony, which means that multiple sound sources are pronounced at the same time.

Chord introduction

According to the third-degree interval relationship or non-third-degree interval relationship, the combination of three or more sounds is called a chord. Chords composed according to the relationship between three intervals are widely used because of the tension between sounds, full sound coordination and natural laws of overtones. Chords composed in non-third intervals are not as widely used as those composed in third intervals.

However, it is of positive significance to enrich the color of harmony and establish a national harmonious language, which can not be ignored. The notes that make up a chord are called chords of a chord. In the basic form of chords, the lowest sound is called the root sound, and other sounds are named according to the interval relationship with the root sound.