What is the rule of chord direction?

The trend of chords is actually the connection form of accompaniment chords and the application of chord functions. The basic function of chords is the function of tuning and chord roots.

Therefore, there are only three basic complete chord trends:

1, main chord-subordinate chord-main chord (case change).

2. Dominant chord-Dominant chord-Dominant chord (positive case).

3. Main chord-subordinate chord-subordinate chord-main chord (positive example).

Third-degree chord: There are usually three chords (three-tone chord), seven chords (four-tone chord), nine chords (five-tone chord), eleven chords (six-tone chord) and thirteen chords (seven-tone chord).

Non-third-degree chords usually include: hanging chords, strong chords (that is, fifth-degree 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 its timbre is fuller and rounder, and it 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. Generally speaking, on the piano, there are three chords and seven chords, and there are few nine chords. In guitar, chords are usually decomposed by sweeping sound, and another chord has many methods of bending sound.