An increase third chord is a chord with a special structure and inversion, which consists of two intervals that differ by three degrees, one of which is the increase interval. This chord has a unique acoustics and expressiveness in **.
The structure and inversion of the added third chord are varied, but the most basic form is made up of two intervals that differ three degrees apart. The root tone is at the top, the tritone is at the bottom, and the pentatonic is between the root and tritone. Chords of this structure are called "in-situ triads".
In addition to the in-situ third chord, there are two common forms of adding third chord transposition, which are the first inversion and the second inversion. The first inversion moves the root note of the original a-3rd chord to the bottom, and the fifth note to the topThe second inversion moves the fifth note of the in-situ increase third chord to the bottom, and the third note to the top.
The third chord is often used to express emotions such as nervousness, excitement, and fanaticism. Its acoustics are unique, with a strong sense of tension and tension. In the classical **, the plus third chord is often used to replace the genus seventh chord or the sub-chord to increase the instability of the **. In pop, the third chord is often used to intensify the climax or add movement.
In addition to its expressive role in **, the third chord also has important historical significance. In the classical period, the chord of the third was seen as a "chord of the devil" because it was strongly rebellious and unstable, contrary to the norms of the time. However, with the continuous development and evolution of **, the third chord has gradually been accepted and widely used, becoming an indispensable part of modern **.
In conclusion, the enlargment third chord is a chord with a special structure and inversion, which has a unique acoustic effect and expressiveness. In **, it can be used to express emotions such as nervousness, excitement, fanaticism, etc., and has historical significance and cultural value.