These sub-genres are not too well known, especially in China.
这些音乐子风格并不太广为人知，尤其是在中国。
2
The Western genre itself has sub-genres, such as the epic Western, the shoot 'em up, singing cowboy Westerns, and a few comedy Westerns.
西部片还包含许多子类型，如史诗西部片、枪战片、西部歌舞片和少量西部喜剧片。
3
For most of its life, rock has been split into different parts, creating new styles every few years -giving birth to a never-ending number of sub-genres.