The xiao, also known as dongxiao, is a musical instrument played by blowing into it vertically. Generally, it is made of bamboo or jade and has five finger holes at the front and one at the back. Two tuning holes are opened towards the bottom at the back, along with two auxiliary holes to beautify the tone, increase the volume, and facilitate the attachment of tassels. There is no membrane hole. The xiao is eighteen inches long, producing a rich and melodious sound. It is mostly used for accompaniment but can also be played solo. Playing it is relatively simpler than other instruments, but playing it well is not so easy.