求有关音乐的种类的英文介绍

推荐两篇,你看不懂的单词肯定有，要不就写不出来了。你可以选着段落用。这是我写的。
一
Traditional Chinese music has tonality, just like Chinese language. In Chinese language, there are four tones in one pronunciation: flat, sliding from lower to higher pitch, or sliding from higher to lower, or combination of the two. These four tones make Chinese language different from any other western languages. As in Chinese music, there are more tones to represent different meanings.

As we all know, western music consists of seven notes. Although ancient Chinese only used five notes to compose music and songs, they had so many tunes to make the five notes sound different. Theses five notes are Gong, Shang, Jiao, Zhi, Yu.

Chinese music is different from music from other parts of the world. To demonstrate its beauty, only Chinese music instruments can do the best. Chinese music instruments can be categorized into eight classes by the materials they are made from. There is reed and gourd to make Sheng (a