The Chinese invented numerous musical instruments, such as the zheng (zither with movable bridges), qin (bridgeless zither), sheng (free reed mouth organ), and xiao (vertical flute) and adopted and developed others such the erhu (alto fiddle or bowed lute) and pipa (pear-shaped plucked lute), many of which later spread throughout East Asia and Southeast Asia, particularly to Japan, Korea, and Viet