How to play the complete 1234567 of erhu in D key?

The inner string is D and the outer string is A. If you play D scale 1234567, you should use 1 and 5 strings. The inner chord is 1 and the outer chord is 5. The first pair is enough. Start with the internal string and start with the empty string 1 2 3 4. Then replace the external string with empty strings 5, 6, 7 and 1.

Erhu d adjusts the standard chord position, as shown in the following figure:

Erhu (pinyin: Erhu) began in the Tang Dynasty and is called "Xiqin", with a history of 1000 years. It is a traditional stringed instrument in China. Erhu, a two-stringed instrument, is also called "South Lake" and "Omz". Erhu is one of the main bowstring instruments in China national musical instrument family.

Erhu's famous songs include Two Springs Reflecting the Moon, Good Night, Listening to Pine and Horse Racing.

Reference link: Erhu-Baidu Encyclopedia