See what kind of music is in the video.

I think it should be close to blues music.

This kind of music has an obvious feature, that is, it is performed in a form similar to China folk songs, which is called "Call and Reponse" in English. At the beginning, the phrase will give people a feeling of nervousness, crying and helplessness, and then the following phrases are like comforting and relieving the suffering people. Just like a suffering person crying to God, and then getting God's comfort and response!