A silly question about erhu

It should be in G key, so we should practice D key first. Erhu mainly listens to sounds. If you want to listen more, find the right sound first!

If it is 52 strings (G key), then the empty string of the inner string is bass 5 and the empty string of the outer string is alto 2;

So the empty string of the inner string is bass 5, two is bass 6, three is bass 7, four is alto 1, the empty string of the outer string is 2, two is 3, three is # 4, and four is 5; This forms an octave.

If it is 52 strings, then the scale cannot be marked as 1234567, but should be 5, 6, 7, 1, 2, 3, # 4, 5, which note is played according to the score.

You have to refuel! ! !