The range of the haegeum is from A-flat 3 to A-flat 5 in its traditional instrumental form. Like most traditional Korean string instruments, the haegeum has silk strings. Like the Western bow, its bow is made of wood and horsehair.19 The body (resonance box) of the haegeum is made of bamboo, and a bamboo stick connects the head. Similar to modern Western string instruments, the head contains the mechanism used to adjust the tuning of the instrument.