There are two common tuning methods in Zhongruan. One is the "four-five-four" (Adad-) tuning method; the other is "five-four-five" (Gdgd-). Other types of tuning methods are now uncommon.

One is "five-four-five" (Gdgd-). Other types of tuning are not common anymore.

The "five four five" tuning method is currently the most widely used.

The four strings of "545" tuning are G,d,g,d- from the fourth string to the first string respectively.

Zhongruan's tune and top key roll call:

C key (tuning: 5 .2 .5 2)

G key (tuning.1 .5 1 5)

F key (tuning.2 .6 2 6)

D key (tuning.4 .1 .4 1)

bB key (tuning: 6 .3 .6 3)

A key (tuning: b7 .4 .b7 4)

bE key (tuning.3 .7 3 7)

E key (tuning.b3 .b7 b3 b7)

bA key (tuning: 7 .#4 .7 #4)

B key (tuning: #5 .#2 .#5 #2)

#F key (tuning.#1 .#5 #1 #5)

The key of #C (tuning: #4 .#1 .#4 #1) is like this, Zhongruan uses the tuning pitch. That is to say, each string of Zhongruan is tuned with a different fixed pitch, and there is a fixed interval relationship between the strings. Generally speaking, the tuning of Zhongruan is basically divided into three types.

At present, there are two common tuning methods in Zhongruan. One is the "four-five-four" (Adad-) tuning method; the other is "five-four-five" (Gdgd-). Other types of tuning methods are now uncommon. The "five four five" tuning method is currently the most widely used.