The tune of Zhonghu is one perfect fourth or fifth lower than that of Erhu, and its range is more than two octaves.

The tune of Zhonghu is one perfect fourth or fifth lower than that of erhu, and it is set as g, d or a, e. Its effective sound range is more than two octaves. All the bows and fingerings on the erhu can be used for the middle hu, and the positions are similar.

Because the zhonghu has a long rod and a wider handle, it is not as flexible as the gaohu and erhu, so it is not suitable for playing tunes with high speed and high strings.

In the band, the seat of Zhonghu is equal to that of Gaohu, which mainly acts as a foil to adjust the timbre and enhance the volume. It is a bridge between high and low instruments, as well as string and wind instruments. With Zhonghu in the band, it can make up for the gap between the high and low frequencies, making the whole band sound plump, rich and harmonious. Therefore, in large ethnic bands, Zhonghu is very important.

In addition, Zhonghu is also an indispensable instrument in the accompaniment of folk music such as Jiangnan Sizhu, Guangdong music and Yue Opera music.