Please elaborate on the use of national elements in Western music creation as follows:

Piano works adapted from national instrumental music are often composed directly using more complete folk melodies. In order to be consistent with In line with the simple, peaceful, light and ethereal folk melodies, the use of harmony also incorporates national factors to dilute the functionality of Western harmony and increase the nationality of the harmony and the color of the melody.

Huang Zi and Qing Zhu were both in the 1920s and 1930s during the anti-Japanese and national salvation period of our country. At that time, the society was turbulent, the economy was backward, and the culture was blocked and developed slowly. At the same time, Western music has become increasingly mature and vigorously developed after the Baroque and Classical periods. Our country's backward and backward music urgently needs to learn from the developed Western music techniques.

In Chu Wanghua's "Er Quan Ying Yue", since the original music is an erhu solo, the author tried his best to imitate the specific timbre and charm of the erhu in the adaptation, such as by using straight lines with large intervals in the melody line Rising and falling, the melody line changes greatly between each phrase, and the sound areas switch frequently to simulate the sound of the erhu's horizontal bowing.

In Wang Jianzhong's adaptation of "A Hundred Birds Pay Attention to the Phoenix", the theme and tonal materials of the original suona song are retained, sometimes with regular sentence patterns and sometimes with improvisation, making the musical image more vivid and colorful. , and more infectious. The music is played in a playful manner, humorous and full of folk life flavor.

Huang Zi’s works are rich in writing skills, drawing on Western genres and forms, reasonable musical structure layout, polyphonic thinking, harmonic language, multiple musical instrument accompaniment and other methods to develop musical ideas, and turning these methods into In order to apply Chinese thinking to works, such as "Song of Everlasting Sorrow" which uses ancient Chinese poetry as lyrics, "Hua Fei Hua" which explores the nationalization of harmony and uses pentatonic tones, etc.

The unique timbre characteristics and sound effects of my country's national musical instruments make the music rich in Chinese charm and embody the aesthetic taste of our people. Therefore, absorbing and imitating the timbre characteristics and sound effects of national musical instruments is an important way to enhance the One of the important techniques of national style and local color in piano works.