Jiangnan sizhu

Jiangnan sizhu (Wu Chinese pronunciation: [koŋ nø sɨ d̥zoʔ]) is a style of traditional Chinese instrumental music from the Jiangnan region of China.

The name Jiangnan sizhu () is made up of two parts. Jiangnan is the traditional name for the area south of the lower reaches of the Yangtze river in southern Jiangsu, Shanghai, and northern Zhejiang. Sizhu, literally "silk and bamboo", refers to string and wind musical instruments, silk being the traditional material from which strings have historically been made in China, and bamboo being the material from which the Chinese flutes such as the dizi and xiao are made. The term sizhu by extension also came to refer to instrumental music in general, especially that played indoors. Other sizhu traditions also exist, particularly along China's southeastern coastal regions of Fujian and Guangdong.

Sizhu is a 20th-century term that refers to the folk ensembles that first appeared in the Ming (1368–1644) and Qing (1644–1911/12) dynasties and have continued to the present day. Many regional variants exist, but the most influential has been the Jiangnan sizhu, which in the 19th century became established south of the Yangtze River, especially in the cities of southeast Jiangsu and northern Zhejiang provinces. By the early part of the 20th century, Shanghai had become the centre of sizhu activities; the city's elite organized numerous amateur clubs that played for social functions and for their own entertainment. The Shanghai sizhu became the basis of the modern Chinese orchestra in the mid-20th century.

As in an Irish traditional music session, the instrumentation is not fixed, and so may vary according to the musicians who are available for a particular performance. Usually only one of each instrument is used, and an ensemble can range from as few as two to as many as ten or more musicians, with the erhu, dizi or xiao, pipa, and yangqin being the core instruments. Players may sometimes switch instruments between pieces.