Hu Lei: Chinese ancient stringed instruments. Hu Lei was also known as "Huqin" and "Er Xian" in ancient times, and it was played immediately. Originally spread in the southwest region, it is called "Dragon Head Pipa", and it was extremely popular in the Tang Dynasty, and it is rarely recorded in later generations. As early as the 4th century AD, in the frescoes of Ajanta in wester...