Sing a band in L.A., the longer it is, the wider it is.

The Bangzi singing Xiaoluocheng consists of two solid hard sticks with different lengths and thicknesses. One is cylindrical with a length of 25 cm and a diameter of 4 cm, and the other is rectangular with a length of 20, a width of 5-6 and a thickness of 4 cm. Bangzi, also called Bangzi, is a percussion instrument in China. In the late Ming and early Qing Dynasties in China (17th century), Bangzi Opera became popular with its rise. One of the four major vocal cavities of China traditional opera, it is named after playing festivals with hardwood bangzi.