The inner and outer strings of erhu are D and A respectively, and Jinghu sets the strings according to the repertoire.
2. Different materials:
Usually the erhu is made of python skin, and Jinghu is made of snake skin.
The materials of Jinghu Qin tube are bamboo, erhu, pine, sandalwood, mahogany and ebony from Gao Hu.
3. Different timbres:
Erhu has the softest timbre and can be played from south to north. Jinghu has a sharp timbre and is often used as an accompaniment to Peking Opera or Paizi Music.
Extended data
Erhu:
Erhu began in the Tang Dynasty and has a history of 1000 years. It originated from a minority in northern China in ancient times, and was called "Western Qin" at that time. Chen Yun, a scholar in the Song Dynasty, recorded "Xi Qin Le also ..." and the poet in the Tang Dynasty's "But the drinker returns to the camp" in Le Shu. The poem "Playing Other Manyi Qin, Guitar and Harp" shows that Huqin has been spread since the Tang Dynasty, and it is the general name of Chinese and Western stringed instruments and plucked instruments.
Jinghu:
Jinghu is made up of a variety of accessories, such as a piano shoulder, a piano barrel, a snake skin, a piano bow and so on. The material and size of making the huqin are very particular. The burden of the piano should be solid, full and beautiful, and purple bamboo is generally used. Zizhu can be divided into White Zizhu, Huanghuazhu, Chujian, Hei Hu and Huanghu. Flowers and bamboo can be divided into "toad flower" and "sesame flower".
Baidu Encyclopedia: Erhu
Baidu Encyclopedia: Jinghu