What's the name of the black boy used in Heluo storytelling?

Sanxian. According to the query impression, Henan. Com shows Heluo storyteller singing a three-stringed drum. So the black boy used in Heluo storytelling is called Sanxian. Sanxian, also known as Heizi, was developed by Qi Xian in the Qin Dynasty. The barrel is made of wood, rectangular, with four corners bent, covered with python skin on both sides, with a long handle, three strings, three needles on the top, two needles on the left and one needle on the right. As the main accompaniment instrument of storytelling, it plays an important role in storytelling and is the backbone of melody.