Harmony arrangement should first consider the rationality of chords and their corresponding melodies, which must be composed of chords or sustain sounds (the main part of melody sounds should be chords rather than sustain sounds). For the arrangement of the whole harmonic progression, we should first consider the harmony rhythm, then consider the termination of the arrangement, and also consider some common connection methods of harmony phrases. In pop music, triad is the main arrangement of harmony, and seventh chord, subsidiary chord, extended dominant chord, substituted dominant chord, related second-order minor chord and transition chord can also be added.

In addition, we should pay more attention to the moving relationship between chords and the arrangement of root sounds. Some chords can be transposed, or other available extended sounds can be used as the lowest notes. In all harmony arrangements, pure fifth degree is the best, followed by keeping the root sound unchanged and promoting the root sound level.

However, the most important thing is to meet our emotional needs, that is, listen to the sound effects more and make more adjustments until we meet our needs.